Just read all the responses in the thread and you have nailed it best here.

It’s obvious in a way that Bitcoin isn’t actual stored energy. Its value is subjective - it could 2x or 1/2x tomorrow and not invalidate itself. Even many years down the line in a bitcoin dominated world this will be true, with respect to its purchasing power vs anything else.

It is however a manifestation of stored energy, and it’s a great metaphor.