It's difficult to think of any new and powerful technology (radio, electronics, computers, programming, viruses, even nuclear reactions) that didn't eventually

It's difficult to think of any new and powerful technology (radio, electronics, computers, programming, viruses, even nuclear reactions) that didn't eventually become available to a teenager in their basement. The most likely end-of-world-as-we-know-it scenario is when used or home-built Crispr tech is in the hands of adolescents who think it will be fun to create a real fatal, rapidly spreading human virus, or wipe out species x, etc.