cycle detection
...that in Floyd's algorithm for cycle detection, the tortoise and hare move at very different speeds, but always finish at the same spot?
...that in <a href="./Cycle_detection#Algorithms" id="mwBJQ" rel="mw:WikiLink" title="Cycle detection">Floyd's algorithm</a> for <b id="mwBJU"><a href="./Cycle_detection" id="mwBJY" rel="mw:WikiLink" title="Cycle detection">cycle detection</a></b>, the <a href="./The_Tortoise_and_the_Hare" id="mwBJc" rel="mw:WikiLink" title="The Tortoise and the Hare">tortoise and hare</a> move at very different speeds, but always finish at the same spot?