This question by @1Fish_2Fish_RedFish_BlueFish was rejected as off-topic, but it seems to me to be puzzling and pleasantly challenging, thus within "creation and solving of puzzles". It was proposed for migration from English Language and Usage and they put it on hold when migration was reject...

Solve this problem by solving it: Follow back, forwards. Words. Hare and the tortoise jumping skyward repeatedly. Hint: