[extropy-chat] Limits of Physics question

[scerir]

From: "Robert J. Bradbury" 

> Within the last couple of months I saw a notice for a paper
> documenting some new limits of physics arguments on computation.

there are also papers, more or less, on hypercomputation
(also via black holes!)
http://www.arxiv.org/abs/gr-qc/0403057
http://www.arxiv.org/abs/gr-qc/0104023 
http://www.arxiv.org/abs/math.LO/0209332 
and about a sort of an accelerated computation 
via "entanglements" or "delayed choices"
http://www.arxiv.org/abs/quant-ph/0109022

Saluti,
s.