What is a bad thing about immortality?

Answer 1

Everyone knows that the Earth won't last forever, and neither will the sun. If we're immortal when the Earth isn't here, we'll be stuck in space. Now space doesn't have any air we can breathe in, and we would usually die if we can't breathe, but if we were immortal, then we would still be suffocating, but we would never die. When the sun goes, it'll be freezing, and we would be cold forever. And what would happen if a comet hit the earth, and the earth couldn't handle it this time? Well, we'd have to go through excruciating pain, but it would never be relieved, as we would never die.

Also, everyone else will die, but we'll have to stay alone, while we watch others die. You'll be frustrated, angry, bored, and you'll probably get driven mad.

Evidence says that sensory deprivation tanks drive people mad in just hours. So how about forever?

Another disadvantage that would really bother me is that you would never find out if there's an afterlife, or god. You'd just have to assume what you think.

Answer 2

A potential downside of immortality is the accumulation of loss and grief from outliving loved ones. Witnessing the passage of time and seeing everything change while staying the same can lead to feelings of isolation and detachment from humanity. Additionally, immortality could eventually lead to a sense of monotony and boredom as one experiences everything life has to offer multiple times.