I prefer a flat time period not in excess of a single lifetime. So, like, 20 years.
Reason being: if an old person invents something (presumably) to benefit his family and immediately dies, I think it’s fair to give the kids time to benefit from it.
Shouldn’t be too long, though, since it shouldn’t have a multigenerational effect. As in, it shouldn’t benefit him during his lifetime AND his kids during theirs.
I dunno! Try and see if you like it!
It’s absolutely a useful skill no matter where your life/career takes you.
To get started, just write about whatever interests you. Could be a diary, or short stories, or fanfic. Doesn’t matter— the goal is to write.
To get better, two things: read more, and write more. The more you read, the more you’ll absorb of how others write and the more ideas you’ll get. The more you write, the more practice you get.
Good luck! Have fun!
I like this one: !git@programming.dev