OK, the big theme here is "innovation has slowed down, but this is being masked by all the activity around computers". So let's take a look at that. Way too many smart people are tied up doing rather banal things with computers, or in finance. That's capitalism in action. What isn't being worked on? Thiel is bothered by lack of progress in medicine. Medicine is now working on really hard problems, most of which are c…
Meanwhile there is in fact an easy path to eliminating aging. Aging is damage accumulation at root. The easy path is to periodically repair that damage - the damage is already identified, after all. Sufficiently good maintenance is the road to eliminating aging; let it happen but control it. Maintain the biochemistry we have and that we know works.
http://www.sens.org/research/introduction-to-sens-research
This has a large weight of evidence behind it, and approaches are already being demonstrated in the case of senescent cell clearance, removal of transthyretin and beta amyloids, and averting the consequences of mitochondrial DNA damage. Others will follow as results become more compelling.