Advertising is only valuable when the user is engaged with the device. It's a very poor model for mining. Why not: 1. Sell compute when people aren't using the

Advertising is only valuable when the user is engaged with the device. It's a very poor model for mining. Why not: 1. Sell compute when people aren't using their machines and split the spoils (not actually profitable for people who pay their own electric bills, but you don't have to say that) 2. Just create malware miners that run all the time.