I wonder sometimes just how the brain manages to deal with the influx of all these new, abstract ideas on a daily basis. Doesn't seem like there's much time to digest it all.
But if this works, if it really is an effective tool for learning, I could see it as a good way of bringing clarity into your life as your brain synthesizes patterns and makes sense of what it's been working on for the past few hours.
The indecisiveness that people often report feeling during the day may just be a lack of time spent consolidating all the information you've acquired up to that point.
Maybe it's a sign you need to take a step back and do absolutely nothing.