> What got me past that point was short bursts at BPMs way past my comfort zone and building synchrony _after_ I stumbled upon more efficient motions that scaled.

This is actually pretty close to what Stetina says. I just probably didn’t do a good job expressing it.

You’re oscillating above and below the comfort zone and that iteration like you say affords insights from both sides, and eventually the threshold grows.

Great suggestion of a video, I’ll check it out.