Atheists ostensibly reject superstitious fairy-tales and religious beliefs because they are logically impossible/unknowable and unverifiable and unfalsifiable and categorically outside the scope of scientific exploration.
However, a surprising number self-described atheists believe in other obviously false concepts without question.
Below are just a few examples of faith based beliefs held by many atheists.
1) Free-Will
This is often defended as "an essential prerequisite to human happiness" the exact same way that religious people try say that religion is "an essential prerequisite to human happiness".
You will also hear the very common "we can't possibly know therefore I choose to believe". This is exactly the same as the theist that argues for "god in the gaps".
The fact that Free-Will is logically impossible and unverifiable and unfalsifiable and categorically outside the scope of scientific exploration is dismissed out-of-hand.
2) Objective Reality
This is often defended as "an essential prerequisite to human sanity" the exact same way that religious people try say that religion is "an essential prerequisite to human morality".
The fact that Objective Reality is logically unknowable and unverifiable and unfalsifiable and categorically outside the scope of scientific exploration is dismissed out-of-hand.
3) Infinity
Phrases get tossed around like, "infinite potential" and "infinite possibilities" and "the infinite cosmos". Max Planck has shown that our reality is NOT infinitely divisible, and we can extrapolate logically that human potential may be "unknown" but it is certainly not "unbounded".
The fact that Infinity is logically impossible and unverifiable and unfalsifiable and categorically outside the scope of scientific explorationis dismissed out-of-hand.