Lents studies rotting corpses and household plants. He might not know much about (living) human physiology.
In all of his “poor” design arguments, Lents inadvertently embraces the design inference.
Glicksman explains the hugely complex blood flow systems required to keep us clear-headed and alive even while doing everything from gymnastics to simply getting up in the morning.
I explained that his writing has certainly seemed like a subtweet, at the very least, directed at ID. Others appear to understand it similarly.
He thinks they should be inside the body, not outside.