This is good advice from experience, and not just in software. If I have an audience I'm much more likely to stick to something, whether it's a side project or

This is good advice from experience, and not just in software. If I have an audience I'm much more likely to stick to something, whether it's a side project or just going to the gym. It doesn't necessarily have to mean shipping something and getting actual users, just having someone that you arrange to regularly show your stuff to is a huge help. If I skip out on going to the gym, or break a regular show-and-tell on something I'm tinkering with, a friend will give me a gentle ribbing which gradually begins to escalate.