Memory Techniques, Speed reading, Speed calculations... what next?

Hello there :slight_smile:

I first discovered how to study in the right way, then Memory Techniques like MPs, and after that, I got to speed calculation.

What else is there, that i never knew of? I hope there is more. Memory Techniques like MPs, and Speed calculation Techniques are amazing, and I didn’t know those exist, before discovering them.

Do you guys know of something else like that? Maybe my question is too vague, but I would be happy to hear of anything, that you guys think might be interesting and worth learning. ^^