I’m currently writing a book about my various inventions, and though I havent got to virtual time travel yet it crossed my mind. It has a flaw. Worse, it isn’t an error, but a flaw. If someone in say, 2150 uses my virtual time travel technique to go back to 2050, then it would kill all of the technology progress between 2050 and 2150. That’s not good. We’d have a zero progress century!
It’s a bit too early to ask for a product recall, but if you ever decide to implement it, get one ready!
The reason is simple and I should have realised it when I wrote the idea up. If you go back from 2150 and tell your earlier self all the tech and how it works from 2150, then logically, anyone can, and the technology is levelled between 2050 and 2150. Tech progress can’t resume until 2150.
Sorry, hope you weren’t banking on it.
If you want to read the flawed design: https://timeguide.wordpress.com/2014/06/17/time-travel-cyberspace-opens-a-rift-in-the-virtual-time-space-continuum/
It still has some merit but killing progress is a high price.