Talk:A-level Physics/Cosmology/How the universe may evolve

This page is actually incorrect. The density parameter does determine the geometry of the universe (whether it is flat, open or closed), but it does not determine the final state. This is because we now know that there is dark energy in the universe, which contributes to &Omega; but makes the expansion accelerate rather than decelerate.

Given that it seems most A-level syllabuses have yet to catch up on this, I would hesitate to put the correct information in the main page. -- Anon