The atheist as well as the believer are both making a claim from
their respective stance, hence both have the burden of proof upon
themselves, not just the believer. The believer says that God
exists, the atheist says that he does not. Both are effectively
making a claim.
There is a difference between the two. Christian claim there is
a god. It is not something tat can be seen or observed from a
general point of view. It is something out of the
ordinary. U cannot say tat non believer also made a claim
in tis case. It is because they did not assert a fact which is not
observed, unlike the christian. Just remember the unicorn example.
I claim something out of the ordinary and have to prove it. The
others r not claiming anything which is out of the norm.
I cannot disprove the existence of an invisible unicorn (or etc)
in your mind, but bear in mind that there are people who have
illusions of such and more, and we normally put them in
asylums.
To be frank a lot of people who claim they see god or god
talking to them r in asylums too
Have you ever seen evolution happening? Or is it deduced? Have
you ever seen the Big Bang or is it just the result of immense
calculation or computer modeling? My point is that science itself
cannot adequately explain or conclusively affirm a certain fact.
What is scientifically proven one day, can be disproved the very
next, and we've seen many examples of that. In my memory, the
Piltdown Hoax is one
Evolution is a fact. It leaves tons of evidences tat points to
it being true. Not only tat NO evidence ever point evolution to be
wrong. Big bang is also believed to be true because there r many
evidences tat points to its existence. It is not as virgourous as
evolution though and it can be proven to be wrong, or in another
form.
U can say tat science has proven one day being proven to be wrong
the next but take note most of them have not reached maturity as
well as scientific fact tat has not been conclusive. The more
established scientific theories and laws which had undergone many
scrutinies over time r seldom shown to be wrong.
The piltdown hoax is proven to be wrong by science itself because
it is naturally able to weed out lies and hoax. If someone sometime
add a line into the bible on its own, can it be detected ? Nope.

It is true that there are many religions in the world, due to
man's wilful interpretations and creativity? But as far as i know,
only ONE has said that He is God, and He is the only way to God and
eternal life. That of Jesus Christ. No other major religion has
made that claim.
How do u know your religion is not due to man wilful
interpretation and creativity ? The bible claims and u simply
believe ? According to icemoon islam claim jesus is just a prophet.
Since it made such a claim then it is true ? Buddhist also claims
deities and god belong to just a realm, and it is not the highest
realm. Then just because it made tat claim then it is true ?
I think believing just because it claims boastfully is not a strong
point for believing in it
About the reason for existence part, i'm not really
understanding u. Say i push all the qns up one level then. So the
universe came to exist by itself? But God is still another level
higher. Which definition is greater? The universe or God? I did
give a criteria for His existence, which was Himself. The uncaused
cause.
U see, if the universe can exist by itself, why is there a need
to force god into the picture ? No god is needed then and there is
no level higher.
If u wanna give a criteria for god, I can also give a criteria for
universe which is the "uncaused cause". If u believe everything
have to be "caused", then tat everything have to include god too.
If u believe tat something can be "uncaused" then tat thing can
very well be the universe.
Then everything remains unanswered. Wat is the difference when u
say "god is the uncaused cause" from saying "god way is higher than
men and we do not knew"