A thing I frequently do is literally just take an object and start observing things about it. Notice what I notice. Notice what conclusions I generate, what assumptions they’re built off of, and what parts of my brain they come from. Notice interactions with other mental models, notice what hypotheses are testable.
Also try some kind of precision physical art, because the brain’s primary job is and always will be moving your body. There’s a lot of prior art in how to move your body better, and I would be surprised if fine-tuning that didn’t translate at least a little bit into increased intellectual fitness.
A thing I frequently do is literally just take an object and start observing things about it. Notice what I notice. Notice what conclusions I generate, what assumptions they’re built off of, and what parts of my brain they come from. Notice interactions with other mental models, notice what hypotheses are testable.
Also try some kind of precision physical art, because the brain’s primary job is and always will be moving your body. There’s a lot of prior art in how to move your body better, and I would be surprised if fine-tuning that didn’t translate at least a little bit into increased intellectual fitness.
(I should take my own advice, meh.)