Why atheism cannot escape absolute truth

[Losty]

In a different thread, an atheist indicated that absolute truth is a difficult view to give up. He's right. 

But it's worse than that: It's impossible to give up absolute truth.

The reason is, in any conceivable universe, operating under any given specification of natural laws, if we reject absolute truth, we reject the ability to say anything meaningful about these possible universes. The very claim "In universe1 there are no absolute truths" is either true or false, and absolutely so. Once you jettison absolute truth, your statements about this possible universe become meaningless.

But the problem goes further than that. If you simply want to reject absolute truths in our world, you demolish the foundations of reason and science, which are irreparably dependent on absolute truth.

Hitting closer to home, the claim "There are no absolute truths" held as a claim cannot be rationally affirmed or denied if it is true. 

Thus, atheists cannot escape absolute truths, on any level.