There's a conveniently placed disclaimer to how he got the "arterial" part (projected image, hardly color correct). From that follows "spray" - so it doesn't re

There's a conveniently placed disclaimer to how he got the "arterial" part (projected image, hardly color correct). From that follows "spray" - so it doesn't really hold water. Edit: missed the part where you were agreeing with the article, apologies for assuming. He does indeed address that, poorly!