On: If you don’t finish then you’re just busy, not pro...

[Strom]

He finished the blog post. That can already be a motivating factor as the list of finished things has increased.

[sevensor → Strom]

Or it can be a demotivating factor, as the list of things he's finished has increased but he's not a single step closer to finishing. I've seen lots of grad students invent plausible reasons to do things that aren't finishing the dissertation, and this blog post fits that description.