I think karma only has true meaning during one's life — do good things for others, others will do good things for you. That's about the extent of it in my opinion. I personally don't believe there's anything spiritual about karma.. and if there's a circumstance where it seems possible, I believe it's also possible it could just be luck or a coincidence. I'm not a spiritual or religious person though. The conception of live does baffle me, though.. so as for what happens after death, I can't say what I believe for certain.. I definitely don't believe in ghosts, spirits, heaven, hell or another stage of our existing lives/souls. I'd like to believe there was some sort of rebirth or reincarnation so I could have a restart at life again, and if there is I don't believe there would be a distinction between the life of a human, an animal, insect or even bacteria - I'd assume life could start anywhere. Saying that, even if there was life on another planet.. not necessarily aliens but plant matter or some kind of animal life, then I don't see why rebirth couldn't be intergalactic, but that's a different topic. I'd like to think rebirth was a thing, only because our conscious was conceived into the world at some point, somehow but I can't say I have a hard belief in anything. I do agree with you about losing wisdom. I'm grateful that we have access to so much information and there's still so much more to learn and discover. I'm constantly watching documentaries and reading so it'll be disappointing to lose that but it's also inevitable at some point in our lives anyway.. death is always inevitable