Fair enough. If you find the idea that "I have a universe." could be implicit in "A particle is somewhere." so unpalatable physics may not be for you. Note tha

Fair enough. If you find the idea that "I have a universe." could be implicit in "A particle is somewhere." so unpalatable physics may not be for you. Note that (most) physicists don't accept infinities as a physical thing. They are mathematically convenient but only make sense as a limiting form. If you were indeed refering to https://www.feynmanlectures.caltech.edu/III_07.html#Ch7-S1 https://www.feynmanlectures.caltech.edu/III_07.html#Ch7-S1 I agree it could be qualified sloppy. But it comes with a warning! ("not at all rigorous but [...] gives us some idea of a real situation") "If the uncertainty in momentum is zero, the uncertainty relation, ΔpΔx=ℏ, tells us that the uncertainty in the position must be infinite" doesn't make sense except when zero and infinity are understood as limits, for example.