I understand the point you’re trying to convey, and it’s perfectly reasonable, but it doesn’t apply to me in the way you’re assuming it does.
I’m not saying it as a crutch or an excuse that I just didn’t care about the weight before, and that’s why I gained it back. That’s really what happened. I made a logical analysis and decided it wasn’t worth the effort to maintain. I did, however, make some changes that were beneficial - for instance, I cut my pop consumption down about 95% (basically only sometimes at restaurants, etc) and cut out other completely nutritionally empty sources of sugar, and that slowed down my rate of weight gain significantly.
I also planned to excercise more in place of a strict diet, but that became impractical due to an irritating string of injuries I suffered over the next few years.
This time around, I’m doing this for different reasons, and at the end - that is, whatever I decide my goal weight is going to be - I’ll do a similar analysis. Whether the results are worth the energy expended and such. If it turns out that I come to the same conclusion, then yeah, I’d gain the weight back. The different motives and experiences I’m having this time around, though, will probably push my decision in favor of staying fit. But it’s not a matter of lack of will, or lack of habit. If I can force myself to eat 900 calories a day now and work out until near exhaustion regularly, I can certainly force myself to change my eating and excercise habits enough to maintain a weight.
Speaking of excercise - I meant to push myself to the point of exhaustion every day, but that has proved to be impractical for two reasons: firstly I simply haven’t been eating enough of an excess of protein to keep me from too much soreness, and secondly because my point of exhaustion is higher than I thought it was.
When I first started, I was in horrible shape. I’d barely moved, generally speaking, in 6+ months. So I figured my point of exhaustion would be really low. But I immediately was able to swim constantly for at least a half hour. Which isn’t much, granted, but I mean constant, active swimming for that long, which is longer than I expected for being completely out of shape.
So, I didn’t push myself as hard as I should’ve then, that is, to the point of barely being able to move, as I had planned, mostly because it probably would’ve left me too sore to repeat for a day or two, and I wanted regular excercise every day. I sort of settled in on doing 35-45 minutes of constant swimming per day, on days I wasn’t lifting weights or doing something else strenuous.
Today I decided to push it, to see how much I was doing under my endurance, and I went 60-70 minutes with only a 2 minute break for stretching. After about 40 minutes, my feeling of exhaustion completely levelled out and didn’t go any further - I feel like I could’ve swam for another hour straight if I wanted to, but my pool closed.
So, concurrent with an increase in protein/calorie intake, I suppose I may start really pushing myself.
Out of curiosity, I weighed myself after swimming, and I’d dropped a solid 4 pounds. Now, almost all of that is water, certainly, but I always had the impression that you wouldn’t lose that much water with swimming because your body wouldn’t get that hot - is the amount of sweat based on the amount of exertion, heat, or, I suppose, both?