Maybe they asked Quora if it was legal.
In all seriousness, though, I don’t get that site’s popularity. I only ever visit Quora by accident (because Google ranks it highly) and it’s basically always garbage answers. And speaking as a developer, the UI/UX causes my eyes to roll back in my head and say, “REDRUM” in a demonic voice. It’s hard to even tell where the answer is because there’s so much superfluous shit on the page.
I would take a class if I were you. Not necessarily at a college but an art, cooking, or dancing class. Whatever you’re into. You mentioned running so maybe try to train for a marathon (or whatever your distance is).
The only other way I know of time traveling is brown liquor and you definitely don’t want to go that route if you’re depressed and lonely. A class will help you meet new people too.
I ran some trail and road marathons when I was younger and trail runners are always super interesting and a bit nuts in a good way. It’s a solo hobby at times but there is a community. Trail running isn’t about your time since every trail is different. No one really compares anything except distance and even then, finding a cool trail is more important. So, it tends to be about the process rather than the outcome.