I was actually referring to the apparent consensus what I see among researchers, but it's indeed vague.

Most researchers don't do cryonics. I think a good majority of LW anti-aging research is underfunded. I don't buy the thesis that people who do cryonics are investing less effort into other ways of fighting aging.

I should look up the numbers if they exist.

The 2013 LW census asked a questions : "P(Anti-Agathics) What is the probability that at least one person living at this moment will reach an age of one thousand years, conditional on no global catastrophe destroying civilization in that time?"

"P(Cryonics) What is the probability that an average person cryonically frozen today will be successfully restored to life at some future time, conditional on no global catastrophe destroying civilization before then?"

And "Are you signed up for cryonics?"

The general takeaway is that even among people signed up with cryonics the majority doesn't think that it"s chance of working are bigger than 50%. But they do believe that it's bigger than 0.1%.