This is a pretty profound comic demonstrating that Truth does not require Belief to continue to be true. Whatever the Truth is will never be altered as the result of disagreement, argument, debate or belief (or disbelief).
The inverse also applies… Belief in something does not compel it to be Truth.
There is Truth that we cannot change. Science is a methodical investigation to find the Truth. Religious Faith is also a seeking of Truth, but it seeks It via a non-proven Belief in a fundamental doctrine. Since the doctrines of the world are largely incompatible with each other, they cannot all be based on Truth. Likewise, since scientific evidence is incomplete, science cannot (at present) definitively provide Truth.
As a scientist (at heart, at least), I desire Truth. I want to see sufficient evidence proving whatever Truth is. Someday we may have scientific evidence to prove Truth true, thus proving everyone with a different Belief wrong.
Truth is true without faith and it’s true without evidence. And without that sufficient evidence, what you believe Truth to be is your Faith.