What is wrong with people that makes them understand “a bound exists” as “the bound is smallish”?
Modus tollens: “no small bound exists” --> “no bound exists”, e.g. life extension is immortality, (but immortality is physically impossible, so too must be life extension).
Modus tollens: “no small bound exists” --> “no bound exists”, e.g. life extension is immortality, (but immortality is physically impossible, so too must be life extension).