if someone said they have a hole in their bowl i'd think they would have a leak in the bowl but if i mold that into a plate does it still haeva hole i didnt glue anything shut or close it clearly blind holes are pretty unique compare that to the hole of a doughnut there is no way to remove a doughnuts through hole or add a new through hole with out gluing stuff together squishing things together to not be together or ripping peiced apart or poking a hole through and breaking it