Milestones of a human lifetime on a log scale

Click For Summary

Discussion Overview

The discussion revolves around the idea of representing milestones of a human lifetime on a logarithmic scale, specifically in terms of seconds. Participants explore various stages of life, propose visual representations, and consider the implications of such a scale.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests creating a log scale of life milestones, noting that most of life occurs in the last decade and a half.
  • Several participants express the idea that a visual representation, such as a log plot, would be more effective than text.
  • Another participant proposes dividing life into fifteen-year periods, outlining stages from childhood to extreme old age.
  • Some participants consider the reverse perspective of life milestones, such as last meals or breaths, and how these could fit into the proposed scale.
  • There is a suggestion to include significant milestones from conception to birth, citing biological importance.
  • One participant humorously notes the absence of their birthday on the scale while referencing the Big Bang.
  • Another participant mentions the need for a Dirac Delta Function in relation to the discussion of visual representation.
  • Multiple participants emphasize the importance of visual clarity and the potential confusion from partial or multiple images.

Areas of Agreement / Disagreement

Participants express various ideas and suggestions, but there is no clear consensus on the best approach to represent the milestones or the specifics of the scale.

Contextual Notes

Some participants highlight the limitations of text in conveying the concept effectively and the potential for confusion with multiple representations.

bob012345
Gold Member
Messages
2,329
Reaction score
1,047
In another thread the concept of how many seconds in a year came up and it made me think of putting milestones of a human lifetime on a log scale. Units are seconds. Please feel free to amend or change or just make it better. Maybe an actual plot? What strikes me is most of life is in the last decade and a half from 10^8 to about 3x10^9.
UndefinedBirth
10^0First breath
10^1First cry
10^2First sleep
10^3First meal
10^4First ...
10^5eat, sleep....
10^6eat, sleep...
10^7crawl, walk, talk
10^8kid, teen, college, job, marriage
10^9grow old, die
 
Last edited:
  • Like
Likes   Reactions: Algr
Mathematics news on Phys.org
Too many words. A picture (a log plot) is worth 10^3 words... :wink:
 
  • Like
  • Haha
  • Love
Likes   Reactions: Wrichik Basu, DaveC426913, topsquark and 4 others
berkeman said:
Too many words. A picture (a log plot) is worth 10^3 words... :wink:
This is more a scale than a plot but yes it could be made with little icons representing the stages of life on a real log scale but that's a lot of work and I am not a graphics designer. It was more the idea than the implementation. Also, I looked but did not find a convenient log plotter online.
 
Or it could just be more like this;

timeline.jpg
 
  • Like
Likes   Reactions: OmCheeto and berkeman
Perhaps changes take place over each period of fifteen years?

0-15: childhood
15-30 young adulthood
30-45 maturity
45-60 middle age
60-75 early old age
75-90 old age
90+ extreme old age
 
PeroK said:
Perhaps changes take place over each period of fifteen years?

0-15: childhood
15-30 young adulthood
30-45 maturity
45-60 middle age
60-75 early old age
75-90 old age
90+ extreme old age
It was meant in the spirit of Phil Morrison's Powers of Ten but over time not distance.

 
bob012345 said:
Or it could just be more like this;
This is how most people think of history. Fire is the center of time.
 
Doesn't this work in reverse as well? Last meal, last breath, last heartbeat?

And even in the middle? First meal today, first breath today, first heartbeat today.

Deep, man, deep.
 
  • Like
Likes   Reactions: bob012345
Vanadium 50 said:
Doesn't this work in reverse as well? Last meal, last breath, last heartbeat?

And even in the middle? First meal today, first breath today, first heartbeat today.

Deep, man, deep.
Yes, but where do I put that on the scale?

Also, I could add a section from conception to birth.
 
  • #10
bob012345 said:
Or it could just be more like this;

View attachment 318268
You forgot my birthday!

Oh, no. Wait. The Big Bang is on there.

No worries.

-Dan
 
  • Haha
Likes   Reactions: bob012345
  • #11
bob012345 said:
Also, I could add a section from conception to birth.
In this time period are some of the most important milestones in one's life.
So say several biologists.
  • fertilization
  • gastrulation
  • body axis formation
  • etc.
 
  • #12
BillTre said:
In this time period are some of the most important milestones in one's life.
So say several biologists.
  • fertilization
  • gastrulation
  • body axis formation
  • etc.
Not covered in many biographies.
 
  • Like
Likes   Reactions: DaveC426913
  • #13
berkeman said:
Too many words. A picture (a log plot) is worth 10^3 words... :wink:
1670357267092.png
 
  • Haha
  • Like
Likes   Reactions: pinball1970, bob012345, topsquark and 1 other person
  • #14
Shouldn't that be on a log plot?
 
  • #15
  • #16
PeroK said:
Not covered in many biographies.
Should be!
 
  • #17
DaveC426913 said:
Nice, but seeing as how a partial picture may not contain enough useful information and multiple pictures just lead to confusion, I think it goes like *this;

desmos-graph (2).png


* function courtesy of prof. P.A.M. Dirac;

##Words(pics)=\frac{1}{a\sqrt{\pi}}e^{-\left(\frac{\operatorname{abs}\left(pics-1\right)}{a}\right)^{2}}\left\{pics≥0, a=0.000565\right\}##
 
Last edited:
  • #18
Vanadium 50 said:
Shouldn't that be on a log plot?
Fixed.
1670422723229.png
 
  • #19
  • Like
Likes   Reactions: bob012345, collinsmark and DaveC426913

Similar threads

  • · Replies 2 ·
Replies
2
Views
14K
  • · Replies 287 ·
10
Replies
287
Views
27K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 15 ·
Replies
15
Views
15K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 65 ·
3
Replies
65
Views
11K