Ever wonder how much energy fish used to grow legs? Answer: A lot.
Why do you already know this? Because while you're not growing legs, you are growing something ... and dare I surmise that "growing" anything takes a whole lot of energy.
But since you probably hate this metaphor, I'll make my 2nd point quickly: Those fish were probably STRESSED OUT trying to get out of the pond and onto land. Could be that they were, indeed, even chased out. Even worse, they probably had no idea that they were growing legs.
Are you growing something evolutionarily useful these days, something like, "tolerance" or "endurance" ???
What about "focus?" Is that trait still useful? Or have our attention spans been sliced and diced into something less useful than a late-night pitch product on the cable channels. I know I type-pad so much that my handwriting has atrophied...but my typing has really improved.
Oops, gotta go, a device beckons. Lemme see who. Oh, that was my husband's device. Shit, I just spilled my coffee. Ugh, oh well no biggie, I'm back now. Fresh cup. Okay, so. Oh? Um. It was like - oh,
Where was I?