We take them for granted, but our ability to interact with the world through vision is beyond remarkable.
“Nothing in biology makes sense except…” Go ahead; complete that sentence yourself, with a yawn.
Egnor he nails it by noting that Shallit, not uniquely, falls victim to the mereological fallacy.
Complexity (such as we see in a pile of autumn leaves) can arise spontaneously from unguided natural processes, but complex specified information cannot.
In a physical world there will be design constraints, so it is only realistic to expect tradeoffs.