You would imagine that by now I would have come to realise how long my attention span is and worked to find projects that fit within it, but no. This is one of the changes I need to make soon.
So often I start a project really excited by it, but am really excited by something else before the end. Book projects always work that way, and quite a few software projects. Sometimes even talks, given a long enough lead time between being asked for a topic and actually giving the talk.
The usual result is that I become distracted before the end of the project, which leads to procrastination. That then makes it take longer, which only increases the distraction and disengagement.
What I’m saying is that if I ever say that I’m thinking of starting a PhD, you have my permission to chastise me. Four years is not within my observed boredom limit. Six months is closer to the mark.