There is progress being made on the _scientific_ effort to cryopreserve organic materials (ex: https://www.sciencedirect.com/science/article/pii/S001122401...). The argument is not that you will live forever, it's that what we consider "dead" today may not be the same as what's considered dead a hundred years from now. A hundred years ago if you had a heart attack and went unconscious, you were considered dead. We know now that there's a lot of things that can be done to revive someone who has just collapsed from a heart attack, but the awareness wasn't there yet.

I'm not interested in cryopreservation personally, but it's quite a stretch to lump the efforts in that space along with astrology or psychic healing.

Then why not write a meaningful reply? Why not say "I think cryonics will not work because... <argument 1>, <argument 2>, <argument 3>", instead of throwing generic insults at people?