A corollary , almost worthy of being a separate bad idea on its own , is that energy does n't matter ( much ) .
The cost share of energy in the economy is so small that it can be ignored e.g. .
A corollary , almost worthy of being a separate bad idea on its own , is that energy does n't matter ( much ) because the cost share of energy in the economy is so small that it can be ignored e.g. .