“The talking about the thing isn’t the thing.  The doing of the thing is the thing.” – Amy Poehler

If it is an epidemic to have people confuse activity with results, then it is even more tempting to confuse talking about work with actual work.  Talking about what you are going to do is not doing it.  Only doing it counts.  

Talking about what you should have done is even worse.  It’s not work and will never result in work, unless your work is time travel.