The activity in SFI is a daily one and this maintains your mind awaken. It is not very easy, but not very difficukt either. In addition, the minimum necessary does not take you more than 20 minutes daily and, in a few years, you can create a good beginning for a good passive income. If you add some more time to create a team as fast as possible, then the way to success become much shorter. Who doesn't need a passive income these days ?