The tech guys are fighting. Literally.

Walking into the crowded hotel conference room, Andrew Batey looked like any other tech guy attending ETHDenver, an annual cryptocurrency conference. A venture capital investor based in Florida, Batey wore a black sweatshirt emblazoned with the logos of more than a dozen crypto companies, with names like LunarCrush and bitSmiley. Batey, however, was at the conference not to network with fellow crypto enthusiasts but to fight one of them — live on YouTube. At the hotel, a short drive from the conference convention center, he was preparing for his…