Way back in the day when I was an actual athlete, swimming was my sport of choice. And I wasn't the only one. There were 20-30 other Years later, after going to the community pool affectionately called the YMCA, I learned that non-swimmers call this thing "circle swimming" (Note: the term 'non-swimmer' here is being defined as people who don't really have a ton of experience swimming in briefs for the better part of their childhood/ high school/ college years. Other terms that I could have used in this scenario might have been, but not limited to: Adult Onset Swimmers (sub-note: I hate this term as it sounds like they have a disease /end sub-note) or Normal People /end Note). I also learned that it was something that they didn't like to do. In their worlds, the line in the middle of the lane is not a guide but a divider should 2 people happen to be in the same lane at the same time. You have your side and I have mine. You shall not contaminate my side of the line for any reason. The swimmers just go with it and continue to circle swim, a term that they were recently taught, only their circles are a little smaller. The non-swimmers, in fact, loathe circling so much that many would sooner abandon their workout and leave the water should a 3rd person join the lane and force a rotational setting.
I have been loosely researching this lack of willingness to circle by the non-swimmers for the better part of a decade. There have been many failed hypotheses throughout this period. Some were due to poor experimental technique (EX: I now know that electric shock practices should not be employed in the pool) while other failures were due to non-swimmers unwillingness to complete a 35 page questionnaire. But, after much hardship (mostly on their parts), I think I've figured it out. Non-swimmers simply don't know how to circle swim. And now I'm going to teach them/ you.
The Art of the Circle
The first thing you need to know about circle swimming is that you don't actually make a circle. Circles traditionally revolve around a fixed point, called a focus, and have a fixed distance, called the radius. Literal circle swimming in the pool is possible, but they'd have to remove all of the lane lines and come to an agreement as to how wide they'd want the circle. Then we'd have the problem of wasting a lot of pool space since we're putting a round hole in a rectangular peg. It's just not an effective use of the space. (Plus, people will be tempted to make a whirlpool and then they'd be completely distracted from their workout.) Therefore, what we call circle swimming is closer to elliptical swimming with the group going around 2 foci imaginarily located near the T-shaped portion of the lane paint near the ends of the lane. They don't want to call it 'elliptical' swimming due to the facts that most swimmers and non-swimmers alike can't swim in a straight lines, there was some initial confusion because some people thought that they hooked up cardio machines of the same name in the pool, and the pathway isn't as geometrical as our former math teachers would like us to follow.
That's pretty much it. Why non-swimmers are intimidated by applying the rules of the road in the water is beyond me.
But, Wait, There's More
Okay, there are some tips and tricks that they don't teach you in circle swimming school. These are traditions passed down in the pool from veteran swimmer to rookie swimmer, most of them learned the hard way.
Trick #1: Match speeds- If you pay even a smidgeon of attention to your swimming, you should have an inkling of an idea as to how fast you can swim down and back (swimmers affectionately call this a "50"). If you don't roughly know this pace, look at the deck clock, or if one is not available, you can Fred it up and look at your watch (Note 3: Fred is a cycling term but since there's no complimentary swimmer word for the concept, I usurped it. I'm confident you can glean it's meaning. /end Note 3). Now that you know-ish your 50 speed, upon arrival to the pool spend about 2 minutes watching the pre-existing swimmers and the clock/ watch. Traditionally, the fastest swimmers occupy the middle of the pool while the slowest swimmers populate the edges and the mediumest swimmers are crammed in between. Also, traditionally, most community pools don't care about tradition. (Note 4: This is the real reason swimmers don't immediately get in the water and they fidget on deck. They are conducting a meta-analysis of the happenings of the space to practice efficiently. And you thought they were stalling. Ha! /end Note 4.) Find the lane that most closely matches your pace. That's your lane.Trick #2: Match skills- In the highly probable world that no one comes close to your speed, find someone with a similar skill set. Do you flip turn? (If not, you should start, Fred!) Does anyone else in the pool have a similar way of pushing off the wall as you? That's your lane. Are you planning on doing breaststroke and/ or elementary backstroke? Then don't get in the lane with the guy/ gal doing butterfly.
Trick #3: Leader stays left- Let's suppose that you know for certain, like 100% fact, that there's no on-coming traffic. That means that the left-hand side of the lane between you and the wall to which you are heading is completely clear. You are now the leader. Congrats! You can pick and choose to swim wherever in the lane you want. If you move over now, you won't have to worry about trying to figure out how to move over at the wall. See how smart you are!
Trick #4: Passing- This is probably one of the most complicated tricks of the trade. It requires both parties, the passer and the passee, to understand what's going on. Here's the system, and pay close attention here: the passer comes up the the soon-to-be passee. The passer does one of the most annoying things possible, on purpose. The passer touches a foot of the passee. If you are a nice passer, you'll only make the touch once. Sometimes you'll slip up and hit it again. Caution- hit it too many times and you might get hit back. Anyway, the touch is to communicate that you are going to pass. The passee should move just a little bit to the right. This is especially important if they are really good at Tip #3. The passer sees this happen and makes a check down the lane for on-coming traffic. Once the left side of the lane is clear, the passer surges to go past the passee. (Note 5: The 
passer should have plenty in the energy tank since they have been sandbagging in the draft zone of the passee. Now's the time to expend that pent-up speed. /end Note 5.) Also, the passee (and pay attention here) needs to let the passer pass. Do not choose this exact moment in time to engage your ego and speed up. The passer is now the leader of the lane, even though they are in 2nd place. The passer takes the left side, hits the wall, and becomes the first placer. The passee goes on swimming like nothing ever happened.Trick #5: Stopping- During an official practice, everyone in the lane is doing the same thing, lest you face the coach's wrath. At the Y, not so much. Therefore, you might be hitting the wall and stopping whilst the people behind you are continuing on. You have the responsibility to get out of the way. Since the person that's still swimming is now the leader of the lane, as evidenced by the fact that you are not making a return trip, they should be moving to the middle or left of the lane. If you decide to stand on the wall, you are encouraging a collision. A passive-aggressive swimmer will flip and use you as the wall. This is not as efficient as it sounds. You'd think that they get to push off a foot or two early. Sadly, you are a slippery, slimy mess with funky contours which is not conducive to pushing off with verve. Your play is to stay to the right side of the lane. If you are not the only one there, then all members of the non-currently-swimming community also stay to the right and line up against the lane line. The left side of the lane, from your perspective, is reserved for the next person who's going to start swimming.
Trick #6: Strokers- Are you doing something non-freestyle? It is your responsibility to not hit the other people in the lane with your flailing limbs. Butterfliers typically do a 1-armed stroke, hopefully with the inside arm remaining still and the outside arm doing the work, when crossing paths with a return swimmer. Breaststrokers try to hold their streamline a little longer as they make the cross. Backstrokers will... Well they got nothing and will likely just grope you (or the person in the next lane). Such is life. I have no idea what the people doing alternative strokes are supposed to do. (That might be on my next list of research ideas.)And there you have it. Just remember these simple guidelines, while trying to remember your set, while trying to pay attention to your technique, while trying to figure out your exhale/ inhale pattern, while trying not to drown, while checking out the hottie in lane 4, while trying to not to swallow water because you've been training hard, while trying to figure out what to cook for dinner, and you'll be golden. It's not that complicated people!
