So I took your advice and did Google Aubrey, I got his WP page first. It says he's into and wants to fund cryonics. I'm not a a biologist, but that tickles my spidey sense. Any remaining hope I had for cryogenics was firmly buried after listening to this: http://www.thisamericanlife.org/radio-archives/episode/354/m...

The second thing I got was this: http://www2.technologyreview.com/sens/docs/estepetal.pdf

The tl;dr summary is:

However, given the recent successes and highly emotional nature of life extension research, Aubrey de Grey is not the first, nor will he be the last, to promote a hopelessly insufficient but ably camouflaged pipe-dream to the hopeful many. With this in mind, we hope our list provides a general line of demarcation between increasingly sophisticated life extension pretense, and real science and engineering, so that we can focus honestly on the significant challenges before us.