When I started using quaternions for rotations, which -- if we're honest -- is the #1 practical applications, I had much more success building my intuition arou

When I started using quaternions for rotations, which -- if we're honest -- is the #1 practical applications, I had much more success building my intuition around this Wikipedia section: https://en.wikipedia.org/wiki/Quaternions_and_spatial_rotation#The_hypersphere_of_rotations https://en.wikipedia.org/wiki/Quaternions_and_spatial_rotati...