I want to buy a bike and then make trips to five locations, one per week. Therefore, I need the bike first and then I can make the trips. I don't need to see the "trip" tasks before I buy a bike. But I want to see them as doable right after I buy the bike. Automatically.

As a user, I would add the "buy a bike" task as a prerequisite for "taking the trip" tasks.

Now I have to put those "undoable right now" tasks into the "waiting" folder and attach a note "can be done while the bike is bought" to them.

What do you think? It would be extremely useful for me in many opportunitties.

Thanks for your work, guys :)