dhw: Are you now saying that your God created a brand new bigger brain from scratch? If not, the change itself simply means adding more cells and connections to those that already exist. Even if you think this is not covered by “modification”, your statement makes it perfectly clear that the brain changes in response to new tasks, not before the new tasks are “at hand”.

In my theory God manages or runs evolution. It does not run itself by chance. A newly enlarged, more complex brain is evolved from a previous smaller less complex brain by God. Implementation results in automatic plasticity changes which may shrink earch stage of brain slightly, as based on current scientific fact.