I think it would be less insightful than you think to hear from failed companies. I wouldn't be surprised if 50%-90% of startups begin life as side-projects an

I think it would be less insightful than you think to hear from failed companies. I wouldn't be surprised if 50%-90% of startups begin life as side-projects and the founder(s) get lazy and decide to fold before even really attempting to get off the ground. Out of the remaining startups that either succeed or fail after substantial effort, I'd be most of the failures can be attributed to rather mundane, predictable circumstances (most of which are mentioned in TFA): - Building a product or features no one wants - Taking too long to ship and offering a discounted beta in the meantime - Wasting time & resources on non-revenue tasks because "business"