No idea what you’re trying to say here, Write4U. But I am exhausted after the weekend and so it could be my fault. I’ll read it again tomorrow.
First I am not talking about IQ, but physical growth (although they may be related).
Let me try to offer a comparison.
I have 4 viable seeds from a plant that has the ability (growth potential) to reach a height of say, 4 feet.
I plant these:
Seed 1 in rich soil with optimum light and moisture.
Seed 2 in rich soil with poor light and low moisture.
Seed 3 in poor soil with optimum light and moisture.
Seed4 in poor soil with poor light and low moisture.
When we observe the results at maturity:
Seed 1 (100% mature) yields a plant of 4 feet, lush with leaves. 100% usage of growth potential according to ability.
Seed 2 (100% mature) yields a plant of 3 feet, still lush with leaves. 75% usage of growth potential according to ability.
Seed 3 (100% mature) yields a plant of 2 feet, skinny and lacking. 50% usage of growth potential according to ability.
Seed 4 (100% mature) yields a plant of 1 foot, thin and weak. 25% usage of growth potential according to ability.
In this case the environment had a distinct effect on the usage/expression of each seed’s growth potential, which was the same in each seed, but resulted in very different growth outcomes.
I believe we can draw a general comparison with growth potential and the environmental effects on the actual growth at maturity of the brain with the example of the plants.
Thus Einstein used 100% of his developed (matured) brain, but was that the full usage of the potential growth capacity of the human brain? If the potential of synapse growth in an average size cranium is ten times the actual growth development in Einstein’s brain (folding capacity), then one might say that while Einstain used 100% of his developed brain, he only used 10% actual synapse growth of its full potential and physical ability to grow synapses.