B The Dean paradox-

  • B
  • Thread starter Thread starter prasanga
  • Start date Start date
prasanga
Messages
1
Reaction score
2
TL;DR Summary
A paradox exposing a fundamental disconnect between the logic that underpin physical theories of reality
I found on Stackexchange -physics this paradox that
undermines physics by exposing a fundamental disconnect between the logic that underpin physical theories of reality

the dean paradox-of colin leslie dean

Dean’s paradox highlights a core discrepancy between logical reasoning and lived reality. Logic insists that between two points lies an infinite set of divisions, making it "impossible" to traverse from start to end. Yet, in practice, the finger does move from the beginning to the end in finite time. This contradiction exposes a gap between the abstract constructs of logic and the observable truths of reality. Thus The dean paradox shows logic is not an epistemic principle or condition thus logic cannot be called upon for authority for any view
https://physics.stackexchange.com/q...-by-exposing-a-fundamental-disconnect-between
 
Last edited:
  • Haha
  • Skeptical
Likes Steve4Physics, weirdoguy and Motore
Physics news on Phys.org
These sort of issues are generally resolved by the concepts of limits and infinity that one is first exposed to in calculus.
 
  • Like
Likes javisot and PeroK
prasanga said:
Logic insists that between two points lies an infinite set of divisions, making it "impossible" to traverse from start to end.
I disagree that logic says it is impossible to traverse an infinite number of points in finite time.
 
  • Like
Likes Klystron, javisot and PeroK
Seems like a variation of Zeno's paradox going back thousands of years.

Philosophy has traditionally always had trouble digesting the concept of infinity, but why someone would considered it a serious issue in modern times is a bit beyond me.
 
  • Like
Likes arivero, phinds, berkeman and 1 other person
Finite time interval also contains an infinite number of points on the time-line. So traveling through an infinite number of space points takes an infinite number of time points, I see no paradox. :)
 
Demystifier said:
Finite time interval also contains an infinite number of points on the time-line. So traveling through an infinite number of space points takes an infinite number of time points, I see no paradox. :)
In a way, this exemplifies the difference between science and philosophy. Science starts by observing motion and developing the mathematics to model it. Philosophy starts from pure thought and concludes that motion is impossible.
 
  • Like
Likes Drakkith and berkeman
If we consider that the distance between two consecutive points on the time-line is increasingly smaller, we can obtain an infinite sum that converges.
 
This is nothing but a rehash of Zeno's paradox and the quoted content in the original post is crackpot nonsense. Thread will remain closed.
 
  • Like
Likes Klystron and PeroK
Back
Top