I don't know about the "concept of infinity is self-contradictory and thus has to be rejected"
Can infinite lines exist in the physical universe?
I said nothing about "lines", "infinite" or otherwise. All I said was
I don't know about the "concept of infinity is self-contradictory and thus has to be rejected" but it's certainly is "here-be-dragons territory".
I was meaning that the study of infinity is a deep one. Can one infinity be bigger than another?
There are
an infinite number of positive integers, say
infinity1, and there are
an infinite number of real numbers lying between 0 and 1, say
infinity2, hence there are
<< and
here-be-dragons territory >>
infinity1 times
infinity2 real numbers greater than zero, say
infinity3.
So order the different "infinities",
infinity1,
infinity2 and
infinity3.
I'm no mathematician, so by now I'm thoroughly confused. I'll stick to counting 0,1,2,3,4 . . . . . . .