In an interview with Yahoo Finance, Apple co-founder Steve Wozniak said Oct. 31 that bitcoin has mathematical purity and a very reliable format that cannot be easily modified under human control, while governments can create new dollars. Wozniak also argued that crypto could be "effectively" used for payments, and that there are already many digital payment methods. But encrypted payments are anonymous and difficult to track. Last December, Wozniak founded a blockchain-based energy efficiency venture called Efforce.
