Most people try to start a company by forcing an idea they think is good. Just like one of my college friends, who doesn't understand the market, industry, or e

Most people try to start a company by forcing an idea they think is good. Just like one of my college friends, who doesn't understand the market, industry, or even the target audience for his idea. Like I said, you don't just start a company. You start a company when you realize that this is a product that can sell, until then, it's a side project. I can't tell you the countless times my college friend came up with a "great" idea. Even went as far as registering an LLC. I quickly dismiss most of his "great" ideas with 5 minutes of googling. Starting a company means you need to invest ALL of your free time into building the company, product, acquiring customers, etc. Most people register an LLC with their crappy idea and think they are running a company. Unless you are willing to drop out of school and invest 80 hours a week building this company, it's probably not worth it. The reason PG suggests to build things that don't scale, is because getting experience building applications is far more valuable than trying to force a stupid idea into a business. Building applications that already exist just for fun, will open your mind. Once you start connecting different ideas together, organically, an idea worth becoming a business will come to mind. You can sit and brainstorm ideas all day, but the best ideas, the ones that can turn into a business, they just come to you out of the ordinary.