Less Wrong is a community blog devoted to refining the art of human rationality. Please visit our About page for more information.

CellBioGuy comments on A Roadmap: How to Survive the End of the Universe - Less Wrong

7 Post author: turchin 02 July 2015 11:01AM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (27)

You are viewing a single comment's thread.

Comment author: CellBioGuy 02 July 2015 05:38:24PM *  0 points [-]

How does the discovery of Dark Energy make a big rip likely? As far as I know the best-fit models instead posit that gravitationally bound objects will remain together (supercluster scale) and become more and more isolated from each other over time, with the constant expansion causing there to be a 'horizon' beyond which you can not reach. The big rip models all require dark energy to change in parameters in a regular way over time don't they?

Comment author: turchin 02 July 2015 05:52:23PM 0 points [-]

Its all depends from constant parameter w which characterise dark energy, but is unknown for now. If w= -1, it will be your scenario, which is close to heat death.

https://en.wikipedia.org/wiki/Big_Rip