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A comment on How many real numbers exist? New proof moves closer to an answer. Parent comment

Re:How many real numbers exist? New proof moves closer to an... by pjfin123 on Thursday July 15, 2021 @01:04PM (#27846979)
I understand the diagnol proof but not a lot of the rest. If you assume only computable numbers exist though a lot of this seems to really not matter.
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Re:How many real numbers exist? New proof moves closer to an... by lupire on Thursday July 15, 2021 @01:54PM (#27847739)
Even if only computable numbers exist, it's inconvenient, to do math on them in bulk, so it helps to have a set of virtual/potential numbers (misleadingly named the "real" numbers, even though almost all of them (100%) will never be realized in any way).
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