Square peaked in my interest in hardware. If Square didn't exist and I had the idea, I probably wouldn't have done it given a) my lack of understanding on how

Square peaked in my interest in hardware. If Square didn't exist and I had the idea, I probably wouldn't have done it given a) my lack of understanding on how hard or how difficult doing different level of hardware dev is and b) that an audio jack could transmit more than audio That opened my interest to exploring all sorts of things about hardware where previously, my entire experience on the technical side had been primarily software.