"Movement is the appearance that the bloom is in motion even when it is not being moved by a separate force. Twisting, curling, pinching and irregularly placed segments of the Unusual and Spider forms give the illusion the blooms are moving even if there is no breeze." - Char
That's a great description. AHS should adopt it and make it official. It describes my current take, but originally I thought movement was really wiggly movement due to the loose and long structure of the bloom which doesn't occur with bagel types.