Try this fun experiment yourself: On some long sidewalk (with no hazards on either side) or on a field, find any visible point 20-30 feet straight ahead of yo

Try this fun experiment yourself: On some long sidewalk (with no hazards on either side) or on a field, find any visible point 20-30 feet straight ahead of you, like a crack in the sidewalk or a leaf, whatever. Now look at it for just a moment (only takes a second or two to imprint its location) and close your eyes. Start walking towards that spot (no peeking), and stop when you think your foot is over the target. You will be shocked at how accurately you estimated the walking distance, and how your body very strongly senses when you've reached the spot. Almost 10 out of 10 times, my foot is perfectly centered over the target (modulo some lateral movement from not walking perfectly straight). For me, I can somehow "physically" feel when it's close, I can feel when I'm over it, and I can feel when I've gone too far.