Working long hours being single helps because your time is yours. Once you have a family your time isn't all yours anymore. Most of the Mac team, we were in our mid-20's, most of us were single, and we were able to essentially devote our lives to it.
We were developing an innovative Personal Information Manager called Chandler but a couple years ago I took off from that to do a project writing down my memoirs essentially, reminiscing about the development of the Macintosh.
The Macintosh having shipped, his next agenda was to turn the rest of Apple into the Mac group. He had perceived the rest of Apple wasn't as creative or motivated as the Mac team, and what you need to take over the company are managers, not innovators or technical people.
In fact when I first got my Apple II the first thing I did was turn it on and off, on and off, just because I had the power to do so, which I'd never had on a computer before.
I knew the Apple II was great when I bought it, but as I dug into the details it just completely blew me away the creative artistic approach that the designers had taken.
But typically for a project like the Mac, the size we had was pretty good. And it has different stages. The team grows as you have to write manuals and do testing... though the Mac had no formal testing.
Scotty heard that I was thinking about quitting Apple because of his actions, so he called me into his office and asked what it would take for me to stay? I said, maybe if I could work on the Mac project, which Steve had just taken over from Jef Raskin.
People who work on the user interface side need to have empathy as a key characteristic. But if you are writing device drivers you don't really need to understand humans so well.
I left General Magic in 1996 to become an Internet hobbyist - got a T-1 line to my house. At one point I had all four food banks of the Bay Area hosted from this house here.
But I think Steve's main contribution besides just the pure leadership is his passion for excellence. He's a perfectionist. Good enough isn't good enough. And also his creative spirit. You know he really, really wants to do something great.