Sometimes anti-Catholics use science to attempt to disprove the Eucharist.
For instance, anti-Catholics may assert: “Science says something can’t be in two places a the same time. In that case, how can Christ be at the right hand of the Father, and at the same time be present on a Roman altar?”
Or, “How can He be physically present on everyone’s tongues at the same time?”
To Catholics these arguments sound silly, but apparently anti-Catholics take them seriously. Enough so to use on people who might be gullible enough to fall for them.
Catholics can take the high road and reply this way, “No, I don’t see either how He can be physically present in all those places at once. But, that does not matter because we walk by faith and not by sight.”
But, it turns out even their use of science to disprove the physical presence is ultimately unfounded. Because, we can actually give examples from science of where something is in two places at the same time. In quantum mechanics, a single photon apparently can go through two slits at the same time, hence being in two different places at the same time.
Another example is the hologram, which is a plate that when a coherent light beam (laser) is shown through it a three dimensional image is formed. Now, the interesting thing is that even if this plate is broken into pieces, the entire image can still be created from even the smallest piece. The whole image is present in each of the pieces of the hologram plate! If this is true for a hologram plate, how much easier it is for Christ to be present in each piece of the Sacrament!
How they place limits on what God can do.