I viewed the original post not to be about particles falling on the altar or floor, but more of a condemnation of receiving in the hand.
OP here. My original post certainly was about particles — crumbs and similarly-sized visible particles that retain the appearance of bread. I do not agree with CITH and I do not receive that way, but the Church has approved CITH, while at the same time urging reverence even to those very small portions that, again, retain the appearance of bread. If CITH can be received without any of these particles being desecrated, then that is fine.
I would note, though, that this was never a problem when the host was received only on the tongue, and when patens were used. I have served more Masses than I can remember, both OF and EF, and I can tell you that particles do sometimes fall onto the paten. They are visible; they are basically little crumbs.
Aquinas specifically mentions quantity as per fine particles as changing the species. He distinguishes between when the bread is broken into small parts keeping the visible attribute of bread and then the corruption of the accidents such as the fine particles.
I do concede that there is a point where particles cease to have the appearance of bread. However, where that point lies is debatable. This takes on the flavor of a kind of “sorites” argument — “how big does the particle have to be?”. A crumb? A flake? A little spot of something white? Dust? Again, these things are not problematical when you have COTT and a paten that is purified by the priest after communion
The young man’s video early in this thread was very helpful in illustrating this. Not saying that CITH is sinful, just stating the fact.
But wrt particles being lost from the Blessed Sacrament being placed in the throne made by cupping the hands of the communicant in the OF Mass, then hopefully one would see this and consume the particle too.
But I wonder how many people look at their hand when picking up the host with their other hand?
I see no harm in being careful. Doesn’t mean people should minutely inspect their hand fastidiously either. Just see what is visible to the eyes.
Point very well made.
Just for the heck of it, I wonder what the Orthodox say about particles of the Eucharist. Anybody here know?