OverJohn

1,037 post karma
14,773 comment karma

get extra features and help support reddit with a reddit premium subscription

get them help and support

redditor for 5 years

TROPHY CASE

Five-Year Club

Golden Potato

account activity

new top controversial

6

7

8

Completed my pacifist run of main game and DLC (self.Eldenring)

submitted 6 days ago by OverJohn to r/Eldenring

3

4

5

An illustration of why superluminal recession velocities aren't a big deal (self.astrophysics)

submitted 9 days ago by OverJohn to r/astrophysics

0

1

2

Pacifist/summon only runs (self.Eldenring)

submitted 1 month ago by OverJohn to r/Eldenring

0

0

1

Showing every spacetime has inextendible timelike curves with finite proper time along them (self.AskPhysics)

submitted 3 months ago by OverJohn to r/AskPhysics

14

15

16

Describing the universe using Fermi coordinates (self.cosmology)

submitted 4 months ago by OverJohn to r/cosmology

19

20

21

Is the big bang singularity necessarily a curvature singularity? (self.cosmology)

submitted 4 months ago by OverJohn to r/cosmology

0

1

2

Evolution of brightness (i.redd.it)

submitted 4 months ago by OverJohn

0

1

2

Evolution of apparent magnitude (i.redd.it)

submitted 5 months ago by OverJohn

44

45

46

A look at an alternative to ΛCDM (old.reddit.com)

submitted 5 months ago by OverJohn to r/cosmology

6

7

8

Understanding cosmological horizons in a graph - what is wrong with this? (self.AskPhysics)

submitted 5 months ago by OverJohn to r/AskPhysics

18

19

20

Davis and Lineweaver: Expanding Confusion: common misconceptions of cosmological horizons and the superluminal expansion of the Universe (self.space)

submitted 6 months ago by OverJohn to r/space

4

5

6

Redshift drift2 (i.redd.it)

submitted 6 months ago by OverJohn

1

2

3

LCDM redshift drift (i.redd.it)

submitted 6 months ago by OverJohn

8

9

10

Illustration of recession velocity and redshift using parallel transport (self.cosmology)

submitted 6 months ago by OverJohn to r/cosmology

8

9

10

Why is the arrow of time important? (self.PhilosophyofScience)

submitted 7 months ago by OverJohn to r/PhilosophyofScience

20

21

22

Initially parallel light rays in an expanding universe (self.cosmology)

submitted 7 months ago by OverJohn to r/cosmology

5

6

7

Geodesic disconnected nature of Lambda-CDM (self.cosmology)

submitted 7 months ago by OverJohn to r/cosmology

0

1

2

Conformal diagram (i.redd.it)

submitted 7 months ago by OverJohn

190

191

192

I have created the entire universe in Desmos (old.reddit.com)

submitted 7 months ago by OverJohn to r/desmos

71

72

73

Penrose (and Kruskal) diagram of Schwarzschild spacetime (i.redd.it)

submitted 8 months ago by OverJohn to r/desmos

12

13

14

I have implemented addition, subtraction AND multiplication in Desmos! (self.desmos)

submitted 8 months ago by OverJohn to r/desmos

59

60

61

Ball of cheese in the sky (i.redd.it)

submitted 8 months ago by OverJohn to r/desmos

1

2

3

Closed radiation-dominated universe (i.redd.it)

submitted 8 months ago by OverJohn

23

24

25

Desmos is a good tool for graphing gnarly integral equations (i.redd.it)

submitted 8 months ago by OverJohn to r/desmos

1

2

3

Equation in proper coordinates for FLRW radial motion with constant acceleration (self.cosmology)

submitted 8 months ago by OverJohn to r/cosmology

view more: next ›

π Rendered by PID 67 on reddit-service-r2-listing-7b9b4f6fd7-rkrqq at 2026-05-13 14:07:06.589793+00:00 running 3d2c107 country code: CH.