Caloric Surplus

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In PPST3, there is a term called "rate of adaptation". Can one say that the caloric surplus should follow the same basic trend?

This would make sense to since during the novice stage you are developing a lot of tissue, which needs a lot of calories. Also, an advanced lifter (years of training) could not consistently maintain a caloric surplus or you would be really fat. Rate of adaptation is synonymous with tissue growth...which needs a caloric surplus. Of course there are also neuromuscular changes which are not directly to tissue development so the curves wouldn't be identical...but I would think the trend would be the same still. Either way, would it be beneficial to add a caloric surplus trendline to the figure?

[Jordan Feigenbaum]

Can one say that the caloric surplus should follow the same basic trend?

Eh, kind of but not really. I mean, it is true that the more you eat the more your BMR goes up. In general, this also produces weight gain. Rate of adaptation, however, has to do with the speed in which one can pass through the stress-recovery-adaptation cycle, which slows down as one gets more and more trained. This doesn't happen with weight gain, in general, though muscle mass increases certainly slow down/take longer to accrue (which is not really what you asked).

novice stage you are developing a lot of tissue, which needs a lot of calories

At any stage in the game, a human is likely to need similar amount of substrate and cals to produce more tissue (per individual), so this likely doesn't change.

Also, an advanced lifter (years of training) could not consistently maintain a caloric surplus or you would be really fat

Doesn't that depend on where they started, how much they grew, and what the caloric surplus is, amongst other things?

Rate of adaptation is synonymous with tissue growth

Explain.