zykotick9 at 2018-01-26T17:51:41Z
stevewood, McClane, Jason Self, Ben Sturmfels and 1 others likes this.
McClane shared this.
So you can swim upstream or downstream =)
JanKusanagi at 2018-01-26T19:10:34Z
OTOH I am picturing a person swimming on the interface between water and air, but upside down, so that they are trying to paddle and kick in the air for propulsion ... and not going anywhere very fast. LOL.
B. Ross Ashley at 2018-01-26T19:55:08Z