[sharipova]

I believe it's possible, but extremely rare. I mean if building 1 successful startup is very unlikely, building 2 successful startups at the same time is even less likely. That is why I think you can play with several ideas at the same time in the beginning, but you should focus on the one which gets traction. Yet, I believe people claiming the impossibility of this are not right. Elon Musk build SpaceX and Tesla at the same time. Jack Dorsey was in Twitter and Square simultaneously for some time. However, the pressure should be enormous.