There are heaps of other superintelligences, with high probability all the other ones are in parts of the (broadly used) Universe that are causally inaccessible
Hm, this might be a difference of perspective; I'm not very confident in the simulation argument as it's usually put forth. (I tried to explain some of my reasons elsewhere in this thread.)
Is there a typo in there? The simulation argument doesn't seem to fit.
Oh, I was assuming... never mind, it's probably not worth untangling.
What looks, at the moment, as the most feasible technology that can grant us immortality (e.g., mind uploading, cryonics)?
I posed this question to a fellow transhumanist and he argued that cryonics is the answer, but I failed to grasp his explanation. Besides, I am still struggling to learn the basics of science and transhumanism, so it would be great if you could shed some light on my question.