Is Interleaving Different Topics So Powerful?

I feel like this interleaving different topics is so powerful because you can concentrate for way longer. Like if I run into a bug and I have to work on it for two hours by the end of that two hours I've finally solved it but I don't have the energy to work on something else. The thing with IR the equivalent to me would be if you run into a topic where you don't understand something which is kind of like what a bug is. Something is going on that you don't you don't have a full grasp but that's why it's a bug. All you do is you postpone it and you can import supplementary material if you want or just assume that something