wha whatsapp, global, 500 million people using it. it could replace facebook in really weird way.need to own things that people -- either the next platform or apps that are must-have for consumers. >>> yesterday, we had a debate on twitter. whether or not it's dead money, twitter has seen a horrendous pullback, faceback has seen a fu pullback. >> i still have twitter, i think twitter has the potential to add more to its platform, of the two, i would rather be in twitter. >> tim? >> at this point, twitter looks interesting, if you like facebook two weeks ago, you should like it now. lot of people think they're reinventing them. this is the problem with twitter, people don't know where they're going and people haven't seen them truly monetize their space. >> you'll see twitter have a video aspect. can they see that? i think that's going to be the major thing. people are going to sell it ahead of earnings. you could see that pop along. i'm still long. >> another weakness today, 3-d pri printing companies. we're talking home models, bicycles and 3-d ford treorino. a firsthand look. ta