Speaking of internet crash, what ever happened to Trump's promise of turning off the internet in the US? I would love to watch the level of carnage that would cause. Bet it would not last more than an hour before he realizes what he just did. Would also be interesting to see how the internet itself would handle that, ex: all the routers having to come back up, and renegotiate BGP etc. I don't think something of that magnitude has ever been done before. It would also be a wake up call to other countries/ISPs to have redundant routes/services such as DNS since right now the internet pretty much relies on the US to function. My guess is that if he did turn it off, it would be done at the ISP level, ex: ISPs would just block/turn off the DSLAMs and other "last mile" equipment. Essentially turn off, or simply just firewall it out. They'd probably be ordered to do it within a certain time period like 72 hours. So in reality the entire internet would probably never go down as he'd redact his order before they all do it, when he realizes all the stuff that stops working, like Twitter.