Nothing is true random?

  • Thread starter uperkurk
  • Start date
  • #1
162
0

Main Question or Discussion Point

I've been thinking about what random actually is and let me give you an example. If you made a machine that flips a penny, put the machine and and penny in a small room, place the penny upon the flipper and let it flip, now so long as the penny was placed in the exact same position every single time and there were no other variables, the penny would land on the same side every single time?

Another slightly more complex test is with a die, if you made a machine to spit out a die into the air onto a table, as long as no variables were changed the die would land on the same side everytime, not only that, but slow the die down and you'd see it take the exact same flight path, it would rotate the same, bounce in the exact same spot and on the exact same angle(s)?

Ok now for the ultimate test, the lottery, the lottery balls are always numbered 1(...)49. If the machine starts spinning the exact same speed and the balls are released at the same pace ect every single time, ok the balls would be bouncing around like mad and appear to be mixing up, but if the little sucker thing always took the first ball at say 10 seconds EXACTLY into the draw, it should always draw out the same ball if you ran the exact same test over and over again, without changing any variables... no matter for how long those balls bounced around the order they get mixed up in should never ever change.

I know the lottery isn't run like this and the times are alternated but true random doesn't exist... if a human could master the art of flipping a coin at the exact same speed, angle, height etc it would no longer be random.
 

Answers and Replies

  • #2
arildno
Science Advisor
Homework Helper
Gold Member
Dearly Missed
9,970
132
Mathematicians couldn't care less if "true randomness" does not exist in the "real" world.
Mathematicians DEFINE the worlds they are working with, and there, true randomness can well exist.
 
  • #3
162
0
But when we say flipping a coin is random, it isn't random at all, it seems random because humans are not precise machines but it certainy isn't random, neither is rolling a die. Or throwing a 52 deck of cards in to the air and having them fall in the exact same place in the exact same order every single time....
 
  • #4
Evo
Mentor
23,134
2,661
Random posts need to go in your journal.
 

Related Threads on Nothing is true random?

  • Last Post
5
Replies
106
Views
6K
  • Last Post
2
Replies
28
Views
5K
  • Last Post
Replies
14
Views
2K
  • Last Post
Replies
12
Views
1K
  • Last Post
Replies
9
Views
2K
  • Last Post
Replies
7
Views
2K
  • Last Post
2
Replies
33
Views
9K
  • Last Post
2
Replies
37
Views
4K
  • Last Post
Replies
8
Views
2K
  • Last Post
3
Replies
58
Views
19K
Top