Can Religion be Based on Evidence?


Aron C. Wall  *



The other day I was at a physics colloquium 
in which the speaker was discussing 
a claim that a certain sort of crystal 
could cause small amounts of fusion. 

One experimenter had claimed to see the effect, 
but the speaker resolved to test it again--on television. 

He played the clip from the TV show, 
in which he informed the readers that (check source) 
"Science is based on repeatable, testable experiments. 
That's what makes it different from religion." 

Off-hand remarks like this, 
routinely delivered from the pulpit 
by eminent, obviously intelligent authorities, 
probably do more to convince people 
that religion is irrational 
than any explicit philosophical argument could do. 

After all, arguments 
can be discussed and criticized
--in other words, they can be checked. 

This statement, on the other hand 
(despite the fact that it ostensibly 
takes the side of critical thinking) 
has clearly not been checked.

The (implicit) implications 
of the statement are 

1) that all sensible people 
know that religion is wrong 
because it is not based on evidence; 

2) Science on the contrary, is based on evidence; 

3) the way to know the difference between 
evidence and non-evidence-based disciplines 
is repeatable experiments. 

If the speaker had bothered 
to think it through this far, though, 
he might have noticed that there are 
many evidence-based subjects 
which do not admit of repeatable experiments.

The most obvious example 
I can think of is History. 

Historical events 
only happened once; 
they cannot be repeated. 

Primarily we know 
about historical events 
because of the writings 
of those who were 
contemporary to those events 
(for historians of the recent past, 
the primary sources 
may also include oral testimony). 

Preferably the historian works 
with firsthand eyewitness accounts, 
but normally the historian 
must settle for secondhand accounts 
written by the historians 
and observers of that period. 

These written accounts 
may be supplemented 
by archaeological evidence; 
which starts to touch the fringes 
of what might be called Science. 

However, the archaeological evidence 
can normally only confirm 
very large-scale events 
like the occupation 
of a region by an empire, 
or the rule of some king. 

If you want to know 
who said what to whom, 
or who killed whom and why, 
the evidence for these events 
comes almost entirely 
from written documents.

Written documents are finite in number: 
for any particular historical event 
there are only so many documents recording it. 

The historians cannot "repeat" 
the experiment by calling 
for a new set of eyewitnesses 
to e.g. the assassination of Julius Caesar. 

They are usually stuck 
with the data set they have 
(though sometimes 
there are unexpected new finds). 

Of course, 
although the data is unrepeatable, 
the historian's analysis can be repeated. 

[Nobel Physics Laureate, Gerard 't Hooft,
wrote in his book: In Search of the Ultimate Building Blocks
that 'History repeats in a way we cannot predict'.

Anyone else is free 
to look again at the primary sources 
(assuming they are published) 
and come to their own conclusion. 

(This kind of repeatability, however, 
applies to every kind of scholarship, 
including in the Religious Studies department.) 

Historical knowledge 
can be obtained only to the extent 
that the historian trusts his primary sources.

And yet, no one goes around 
saying that History is bunk 
because History is not Science. 

No one would ever say that, 
because it would not fit properly 
into the meta-narrative of secular rationalism. 

Rationalists need History, 
if for nothing else, 
as something to vaguely gesture at 
when trying to force all religions 
into the mold of either the Witch Doctor 
(animists postulating demons to explain crop failures), 
or the Inquisition (dogmatic ecclesiastics 
trying to suppress right-thinking empiricists). 

More importantly though, 
it is simply obvious that History 
is an evidence based discipline.

Another example 
that could be cited is Law, 
specifically judicial 
fact-finding by a judge or jury. 

Here again, 
the primary form of evidence 
is (written or oral) testimony, 
although supplementary 
forensic evidence 
may be important as well. 

Although our law courts 
are far from perfect, 
no one could say 
that they are not based on evidence.

So what is the moral of this story? 

Although it might be nice 
if scientists could be relied upon 
to act as intellectual leaders 
championing critical thought 
in all areas of life, 
a scientist forfeits that respect 
when their pronouncements 
are based on the prevailing 
intellectual culture rather than 
on independent critical thinking. 

Another moral, of course, 
is that one cannot simply assume 
that there is no valid evidence 
for religious claims apart from 
repeatable experimentation, 
since after all, History takes this form.

And in fact, if one looks, 
much of the evidence for religious claims 
takes exactly the same form as History, 
because in fact, it is History 
(i.e. documents from the past 
purporting to say what has happened). 

I refer to the 
numerous historical documents 
in which it is claimed that events 
have occurred by supernatural agency, 
which are not possible by normal natural means. 

In other words, claims of miracles.

One might object that miracles 
should not be accepted, 
even when they appear in Historical texts, 
because Science has shown 
that miracles do not happen. 

This claim, however, makes no sense. 

You can only rule out a claim 
by experiment if the claim 
is contradicted by that experiment. 

Now most religions 
do not claim that miracles 
are an every day event. 

Rather, they are claimed 
to be an exception 
to the usual course of nature, 
as a result of the intervention of God 
granted to a few privileged people. 

It is true that e.g. 
dead people do not normally 
come to life again. 

I think it is a little strange 
to call this fact a discovery of Science; 
I cannot myself recall 
any great experiments on this topic, 
and I suspect that people 
actually knew that most people 
stay dead long before 
the Scientific Revolution; 
surely even the founders of religions 
were acquainted with this fact!

The skeptic might take 
a broader view and say, 
it used to be 
that there were all kinds 
of unexplored regions 
in our knowledge, 
but now we know enough 
about physics and chemistry 
to have a reasonably 
complete understanding 
of the dynamics of matter 
(even if a complete theory 
of physics does not yet exist).

There are a variety of different views 
of the supernatural held by different religions; 
many religions either do not accept, 
or do not place any great importance 
in, claims of miracles 
(e.g. most sects of Buddhism). 

Mohammed repeatedly stated 
that the only "miracle" 
he would provide 
to prove the authenticity 
of his teachings 
was the beauty of the Koran, 
and challenged his opponents 
to produce other verses like it. 

(Though Mohammed's disciples 
did make a few claims after his death 
that he had nonetheless performed miracles.) 

But for Christianity, miracles are critical. 

Jesus is purported 
to have performed numerous miracles 
including healing the blind and the lame, 
restoring the dead, multiplying bread, 
and walking on water. 

Most importantly for Christian theology, 
he is supposed to have risen from the dead himself, 
acquiring by this means a new mode of life 
which he promises to also give 
to those who believe in him.

Now what is one to make of claims like this? 

One possible attitude to take 
is that the claims are so silly 
that no respectable person 
could believe them, 
no matter how great 
the amount of evidence. 

(Unless perhaps the evidence 
were so great that 
no one could really doubt it: 
e.g. God appearing visibly in the sky 
and speaking to everyone every decade or so, 
striking trees with lightening upon request, 
or at least ensuring that modern day 
miraculous occurrences 
are a regular feature on CNN, 
rather than being confined 
to overcredulous Catholics, Pentecostals, 
and missionaries to Third World nations).

But why are these claims silly? 

Is it because 
you have a visceral sense 
that such things simply cannot happen? 

Others have 
a visceral sense of God's love, 
but this is hardly regarded 
as proper evidence by rationalists. 

Normally, 
rejecting serious claims 
without examining the evidence 
is simply a sign of bias. 

Nor is it fair to construct 
an entire worldview 
of naturalistic materialism 
based on the presupposition 
that miracles do not happen, 
and then say that 
anything that doesn't fit well 
into this worldview 
should be regarded 
with grave suspicion 
as an "extraordinary claim". 

That would be circular. 

What claims are 
or are not extraordinary 
depends on the worldview 
you already possess. 

If the task is to construct 
a worldview on the basis of evidence, 
than one of those world views 
cannot be appealed to 
in order to make 
the other ones look ridiculous.

Nor is God really 
so extraordinary 
a hypothesis as all that? 

Quite a few, 
perhaps a majority, 
of people on the planet 
have had some sort 
of religious experience or another. 

True, these people 
have wildly divergent interpretations 
of what these experiences mean. 

Some interpret them as insights 
into the connectedness of life, 
but some experience it 
as a deity speaking to them. 

They may go on to invent 
all sorts of fanciful conjectures 
about the nature of the experience, 
but the experience itself 
is surprisingly common, 
perhaps even hardwired into our brain. 

Even atheists-
-and I offer this merely 
on the limited sample of people 
I have talked to-
-seem to me to mostly differ 
based on how they interpret 
(and whether they believe) 
these experiences, 
not on whether they have them. 

Such experiences may not be 
the strongest possible argument, 
but they should at least be 
strong enough to balance 
an inarticulate distaste 
against all religious hypotheses.

Now do not get me wrong here: 
I am not making 
an "Argument from Religious Experience" 
in the sense that I claim that religious experiences 
can be used to prove with certainty 
that some, or any, religion is correct. 

Rather I am simply saying 
that there are multiple 
possible interpretations 
of this phenomenon, 
both religious and irreligious, 
and that the religious ones 
ought not to be disregarded a priori. 

If a person experiences 
God speaking to them (as I have), 
it is certainly possible to doubt afterwards 
whether this is really occurring. 

There are possible atheistic explanations. 

But what seems clear enough 
is that the experience 
superficially suggests 
the existence of God. 

It is not as though God 
were an arbitrary hypothesis 
imposed on one's experiences, 
instead God 
is a natural interpretation 
of certain experiences. 

It therefore seems like 
it should be a hypothesis 
which is allowed to be 
"on the table", 
within the realm 
of rational discourse. 

And if there were a God 
who causes religious experiences, 
I cannot see how we could rule out 
a priori that this God would be able 
to perform miracles as well.

One could also try to show 
that miracles are unreasonable 
by some sort of philosophical argument; 
either (like Hume) targeting 
the idea of miracles themselves, 
or perhaps targeting 
the underlying religious claims 
which the miracle is supposed to support 
(the most popular example here 
being the Argument from Evil). 

But of course, 
Philosophy isn't based 
on repeatable experiments either. 

In fact, it seems to me 
that generally speaking, 
Philosophy ranks third 
after Science and History 
in its ability to conclusively 
demonstrate propositions. 

(Although of course, 
the Philosophy of Science and History 
is implicitly required in order to know 
what Science and History 
are themselves capable of.)

Philosophy as applied to Religion 
goes by the name of Theology. 

On a number of occasions 
I have heard scientists 
mock other scientist's beliefs 
(such as string theory) 
by calling them "theological". 

What they mean to insinuate 
is that the beliefs in question 
are based on dubious 
a priori speculation 
about the way things 
seemingly ought to be, 
without a sufficiently 
close connection 
to actual empirical data. 

This of course 
is another example 
of the prejudice with which 
I began my essay. 

But let me call for consistency here. 

If the human mind 
is capable of great insight 
into the structure of metaphysics 
by means of armchair 
philosophical reasoning, 
then Theology 
is a valid form of reasoning. 

Let the religious folks 
present their Cosmological, 
Ethical, and Teleological Arguments 
(and also I suppose 
the patently nonsense Ontological Argument) 
while the atheists retort with various forms 
of the Argument from Evil, 
and perhaps some claims 
that the properties 
ascribed to God 
are logically inconsistent. 

We can have that fight if you want.

But, some may say, 
all of this theological speculation is bogus. 

Have we not learned 
from philosophies of the past, 
that the unaided mind 
is weak and untrustworthy? 

Speculative reasoning 
comes to all manner 
of absurd conclusions 
when operating on the basis 
of armchair reasoning alone. 

Without empirical correction, 
it is almost certain to go astray. 

Fine then! 

By all means, 
base your beliefs 
on the empirical evidence instead! 

But then you must not adopt 
a criterion whereby secular rationalism 
is allowed to use Theology to trump Empiricism, 
while mocking Religion for doing the same thing.

What is the alternative to deciding 
whether religion is right or wrong 
through philosophical speculation? 

The alternative is to look 
at the documents with an open mind, 
using the principles of History 
to try to inquire into their reliability, 
without any severe a priori prejudice 
towards claims of the supernatural. 

I do not mean 
that a mild skepticism 
towards supernatural events 
is uncalled for. 

After all religions 
do make specific claims 
regarding the existence 
of unusual entities and events, 
and it is fair to say 
that they must make 
a decent case in order to be believed. 

What is not fair is to pretend 
to do a historical analysis 
while in fact setting the bar so high 
that no amount of historical evidence 
could clear that bar.

A little over 2,000 years ago, 
Julius Caesar was assassinated. 

The actual assassination 
was witnessed only by Roman Senators, 
but there several historians who describe the event. 

Counting only those who were alive at the time, 
I was able to find about five or six mentions of the event, 
although only a couple go into significant detail. 

And of course, 
the assassination affected 
the ongoing institutions 
of Roman governance. 

I regard this as extremely 
convincing evidence 
that the assassination really occurred. 

In fact, I would go further 
and say that anyone 
who disbelieves 
in Caesar's assassination 
is delusional. 

It could only be untrue 
if there were a highly 
implausible conspiracy 
to conceal the true facts from us. 

This is an example 
of a strong historical case, 
about as well supported 
as one has any right to expect 
an ancient historical event to be.

A few decades after that, 
the disciples of Jesus 
claimed to have seen him 
rise from the dead 
and appear to separate groups 
of up to 500 individuals, 
on at least ten occasions, 
giving "many convincing proofs" 
that he was alive, 
by offering visual, auditory, 
and tactile support for his state of life. 

Since they also claimed 
he was capable of appearing 
and disappearing instantaneously, 
it would be hard to explain 
this in naturalistic terms.

Some people say, 
that is circular reasoning 
because I am relying 
on the authority of the Bible itself 
to prove these claims! 

Not so. 

It would be circular 
to appeal to the religious authority 
of a religious text 
in order to establish that religion is true. 

I do not deny 
that some Christian apologists 
have the annoying habit 
of simply citing scripture texts 
at nonbelievers, 
as though they were oblivious 
to the fact that their audience 
does not start out by believing the Bible. 

But as applied here, 
the objection misses the point. 

I am not asking you 
to assume that the Bible 
has any divine authority. 

I am simply asking you 
to treat it just like 
any other ancient historical text, 
and decide whether or not to believe it 
on the basis of it being claimed testimony. 

Since the New Testament 
is actually a compilation 
of different sources 
by different authors, 
it is actually a number 
of separate documents 
claiming these events occurred. 

Five of the New Testament authors 
(Matthew, John, Peter, James, and Paul) 
are among the claimed eyewitnesses, 
while the rest are second-hand sources, 
based on the testimony of others. 

Some of the eyewitnesses described, 
such as Thomas and Paul, 
were skeptical or hostile 
before being converted by seeing Jesus. 

There is also good evidence 
(including outside the New Testament) 
that most of these people, 
after lives of self-denial and poverty, 
were tortured to death for making this claim. 

Yet they made it all the same.

Reading these texts, 
I find that they report these events, 
not as a mythic cosmic drama 
filled with stylized superheros 
(as in e.g. Homer or the Epic of Gilgamesh), 
but as a soberminded factual narrative 
filled with mundane 
corroborating details of person, 
place and happenstance, 
with bystanders that act plausibly 
and sometimes oppositionally. 

They include, 
not just those events 
that support their story, 
but also the sayings of Jesus 
that might at first sight seem 
to contradict their theological claims 
(such as his cry of forsakenness on the cross). 

It is clear that the events 
are being put forward 
as factual historical claims, 
not as an inspiring work of fiction. 

The only reasonable 
atheistic alternative explanation, I think, 
is that it was a conspiracy to lie, 
adopted by a diverse group of claimants 
and upheld for decades 
without internal dissent 
under the strongest possible motives to recant. 

Yet it is difficult for me to believe 
that the custodians of the intensely 
strict ethical system of Jesus 
would be able to lie, 
and so convincingly, about these events.

It seems abundantly clear to me 
that if the claims in question 
concerned ordinary natural events, 
everyone would believe it, 
everyone except 
a few cranks of the sort 
that write books saying things 
like 9/11 was really planned 
by the American government, 
or that somebody else 
besides Shakespeare wrote Shakespeare. 

The evidence is approximately 
as good as the assassination of Julius Caesar, 
though perhaps Caesar has a slight edge. 

Recall though, 
that Julius Casesar's assassination 
is about as good 
as ancient historical evidence can get. 

If you won't accept this level 
of historical evidence for a claim 
that challenges your worldview, 
you are crippling the ability 
to learn anything really important 
about the world from History. 

Even so, no one can stop you 
from putting your hands 
over your eyes 
and your fingers in your ears. 

___________________________________

*: The author is a young theoretical physicist
(Born in June 7, 1984)
who obtained his Ph.D. in physics
from the University of Maryland
on the subject of black hole thermodynamics
His advisor was a top rate
theoretical physicist, Ted Jacobson.

This work won the prestigious
Bergmann-Wheeler Prize
awarded by the Institute of Physics
to the best thesis in the last three years
on the broad area of quantum gravity.

He has now a postdoctoral position
in the University of California at Santa Barbara,
generously funded by the Simons Foundation.

He regular publishes in the best journals
(Physical Review, Classical and Quantum Gravity,
Journal of High Energy Physics, Foundations of Physics...)
of his specialty, collaborating with renowned
experts such as Ted Jacobson, Donald Marolf
and cosmologist Alex Vilenkin, among others.

________
On October 26, 1929,
The Saturday Evening Post published
an interview with Albert Einstein,
entitled "What Life Means to Einstein",
where he recognize being captivated
by the person of Jesus:

"As a child I received instruction 
both in the Bible and in the Talmud. 
I am a Jew, but I am enthralled 
by the luminous figure of the Nazarene... 

No one can read the Gospels 
without feeling 
the actual presence of Jesus. 

His personality pulsates in every word. 
No myth is filled with such life. 

Jesus is too colossal 
for the pen of phrase-mongers, 
however artful. 

No man can dispose 
of Christianity with a bon mot

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