I'm in 2025 right now, so I guess time travel is already possible, scientists are just keeping it a secret and joking that it's gonna be invented in like, 300,000 years, but I'm the only one who's not a scientist who knows about time travel. If Bill Nye is still alive, maybe you could go visit him and ask about it. I think his lab is in California. I don't know if Bill Nye is retired, but maybe if you know where he lives now, you could still ask him.
PS. Please don't see when this comment was made.