in april of 2011, the winklevoss twins lost their appeal of the lawsuit against zuckerberg, and their8 settlement still stands. [ticking] [bluesy guitar music] ♪ coming up, we meet another silicon valley billionaire: microsoft's paul allen. >> you built this building. >> it's amazing to think, back then, nobody had personal computers. i mean, there were computers in universities and research labs and in corporations, but nobody had personal computers. [keys clacking] >> the cofounder, when 60 minutes on cnbc returns. [ticking] ur day to unplug. with centurylink as your technology partner, our visionary cloud infrastructure, and dedicated support, free you to focus on what matters. centurylink. your link to what's next. 3d white brilliancele with the toothpaste and boost.m crest: after brushing, our exclusive boost... ...polishes your smile and whitens with 3x the stain lifting ingredient... ...for a smile that dazzles. only from crest 3d white. [ticking] >> today paul allen is known more for his mega-yachts and palling around with brad and angelina than for his revolutionary ideas in