Is Distance Just an Illusion? The Philosophical Perspective

  • Context: Graduate 
  • Thread starter Thread starter RapidRick
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the philosophical implications of distance, questioning whether it is merely an illusion. Participants explore the relative nature of distance, comparing human size to subatomic scales, such as electrons, and the concept of zero length. They reference Zeno's paradox and the Planck length (1.61619926 × 10-35 meters) to illustrate the complexities of measuring distance. Ultimately, the consensus suggests that while distance may appear relative, it is not an illusion, and humans occupy a central position in the scale of size.

PREREQUISITES
  • Understanding of Zeno's paradox
  • Familiarity with Planck length and its significance in physics
  • Basic knowledge of relativity and reference frames
  • Concept of relative distance and velocity in physics
NEXT STEPS
  • Research the implications of Zeno's paradox in modern physics
  • Explore the significance of Planck length in quantum mechanics
  • Study the principles of relativity and how they affect measurements of distance
  • Investigate the concept of dimensionality in physics and philosophy
USEFUL FOR

Philosophers, physicists, and students interested in the intersection of philosophy and physics, particularly those exploring the nature of distance and reality.

RapidRick
Messages
3
Reaction score
0
I'm not familiar with the format of the forum, but could someone straighten me out on a question about distance and as to whether or not distance is only an illusion? How is it that the human body and the immediate physical world JUST HAPPENS TO BE on a scale of size that is so close to what we consider zero length, when you can look out a universe with apparently no end. That is, a 6 feet tall man is only 6 feet larger than zero length. A man can put his two index fngers together and say "that's zero length", but he can't even fathom the distance to the nearest star. So, is zero length even attainable, after all, it is infinitely small. If a human were the size of the apparent size of an electron ( 2 x 10 -15 meters) then 6 feet distance would be(if may calculations are correct) about 1/4 light year away. So for an electron at our toes, the top of our head would be 1/4 light year away. So the human body is huge compared to an observer on an electron. I think our perspective of the world around us is only a point in space afterall. This is more philosophical than hard science obviously. To summarize, how does the size of a human JUST HAPPEN to be so close to one end of the distance "yardstick" (6 feet from zero) and so seemingly infinitely far from the other end of the distance "yardstick". Is our seeming proximity to zero length only an illusion or are we situated somehere within the scale which goes from the infinitely large to the infinitely small, neither of which are obtainable.
 
Physics news on Phys.org
Not sure but Zeno ' s paradox may be of interest to you.
 
MidgetDwarf said:
Not sure but Zeno ' s paradox may be of interest to you.
Thanks. I did look over this. Distance is probably interpreted in terms of how long it takes to reach the distance. If we had arms that could reach out and grab a nearby galaxy( in addition to scaling up size, you would have to scale up the speed at which you could extend your arm which would exceed the speed of light which I'm not sure is theoretically possible), then I guess that galaxy would not be so far away.
 
Last edited:
6 feet would take light approx. 6 nanoseconds to travel. What's your thinking on why it would take 1/4 l.y.?
 
artyb said:
6 feet would take light approx. 6 nanoseconds to travel. What's your thinking on why it would take 1/4 l.y.?
If you consider relative distance and velocity: So, a 2 meter tall person running 2 meters per second would be equivalent to a
2x10^-15 meter "tall" electron "running" 2x10^-15meter/second. So the "speed of light" in the electron's realm would be about
3x10^-7m/secThat is, the distance of 2.98x10^8 meters(distance light travels in one second) would be to a 2 meter tall human what
3X10^-7meters would be to a 2X10^-15meter "tall" electron. Kind of a silly concept, and don't want to bore you. Still seems that distance is a relative concept.Thanks for entertaining the question.
 
Last edited:
RapidRick said:
I'm not familiar with the format of the forum, but could someone straighten me out on a question about distance and as to whether or not distance is only an illusion? How is it that the human body and the immediate physical world JUST HAPPENS TO BE on a scale of size that is so close to what we consider zero length, when you can look out a universe with apparently no end. That is, a 6 feet tall man is only 6 feet larger than zero length. A man can put his two index fngers together and say "that's zero length", but he can't even fathom the distance to the nearest star. So, is zero length even attainable, after all, it is infinitely small. If a human were the size of the apparent size of an electron ( 2 x 10 -15 meters) then 6 feet distance would be(if may calculations are correct) about 1/4 light year away. So for an electron at our toes, the top of our head would be 1/4 light year away. So the human body is huge compared to an observer on an electron. I think our perspective of the world around us is only a point in space afterall. This is more philosophical than hard science obviously. To summarize, how does the size of a human JUST HAPPEN to be so close to one end of the distance "yardstick" (6 feet from zero) and so seemingly infinitely far from the other end of the distance "yardstick". Is our seeming proximity to zero length only an illusion or are we situated somehere within the scale which goes from the infinitely large to the infinitely small, neither of which are obtainable.

Sounds like you are simply referring to that it is strange that particles tend to stick together which is not only a property of space but due to the properties of particles, such as their relation to the cause of forces.

In fact this length is very far from your example of holding two fingers together. The force fields won't even let the molecules come this close: 1 Planck length =
1.61619926 × 10-35 meters.

Why do we need to reach intermediate positions if everything is just one dot, at the same place? Distance is obviously not an illusion. Perhaps in the case of relativity it is according to how we predict other frames of references.
 
Last edited:
RapidRick said:
To summarize, how does the size of a human JUST HAPPEN to be so close to one end of the distance "yardstick" (6 feet from zero) and so seemingly infinitely far from the other end of the distance "yardstick". Is our seeming proximity to zero length only an illusion or are we situated somehere within the scale which goes from the infinitely large to the infinitely small, neither of which are obtainable.

Humans are not at all closer to one end of the scale than the other. We are very close to the middle.
 
RapidRick said:
This is more philosophical than hard science obviously.
You are indeed correct. And since this isn't a philosophy forum, thread locked.
 

Similar threads

  • · Replies 20 ·
Replies
20
Views
2K
  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 30 ·
2
Replies
30
Views
8K
  • · Replies 54 ·
2
Replies
54
Views
6K
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K