By default, tasks are arranged in columns as a week view. Every column represents a single day which may contain one or more task deadlines. But if someone within your project misses their deadline (we say “someone” because we know you would never do that, it’s always someone else), the task appears in “The Pit of Grief, Resentment and Depression” column. Update: It’s the “Overdue” column, we had to change the name to something shorter.
If you’re not ready for this kind of commitment with a given task - leave it in the “Someday” (previously known as “We Both Know It’s Never Gonna Happen”) column.