Action bias is pretty simple to understand.

All else equal, we should prefer to doing something rather than doing nothing.

While there is certainly value in slow and methodical approaches to solving problems, it’s important to take action even if it is not optimal.

For instance, momentum-based activities such as studying or training would greatly benefit from simply forcing oneself to drive to the library or the gym.

It’s much easier to get the ball rolling when we create the habit/routine of starting the activity, even if it is slow or inefficient at first.

Granted, there are times when it’s better to take your time.

For instance, when sending a sensitive message or negotiating something, it’s not wrong to spend a little time thinking about what you want to do.

However, even in these cases, action bias can help us think more clearly through radical simplification.

If you’re sending a sensitive message - how much thinking do you need? Do you truly care that much about what other people think? Is a wall of text going to help you more than a few words?

If you’re handling a difficult problem - how difficult is this problem? Do you truly think the issue is complex or requires a complex solution?