it feels like it will only take a few minutes

Does it? Do you really feel that way? Let me suggest that maybe that's not an accurate description of what you feel.

I feel like I'm not committing to more than a few minutes, even though if I had thought of it, I would estimate I'd be spending more than a few minutes.

To me, the problem is in incrementalism. I read a tweet. I read another. No particular tweet is a huge time investment. (Just like no particular M&M makes you fat). So it's tweet after tweet after tweet. I'm never facing one tweet that is going to be a big time investment. So it's tweet after tweet after tweet.

Hmmm. And maybe that's the secret. Getting fat eating M&Ms is easy to visualize. And conceptualize. I need a similarly meaningful vision of the lacking in accomplishment me, that eating tweets will turn me into.

Inverse procrastination

I like that. I saw it as procrastinating having fun with work. I would see the problem in that of making sure that work occurred while you didn't watch the movie, instead of some useless past time. That's not a problem for you?

There's a similar strategy of "procastinating later". "I'll goof off a little later." I think some argue that you get the satisfaction of the goof off in the anticipation of it, and that helps you continue.