# Top Ten Reasons Why Four is a Better, More Significant Number Than Five

I like five, but four is a more significant and more cool number. Sorry, keycha1n.
The Top Ten
1 There are 4 dimensions in relativity equations
2 4 is the smallest composite number

This is why I always wear four on the baseball field. It's the best (and my favourite) number.

3 There are 4 confirmed fundamental interactions of physics

Recent cosmology may prove the existence of a fifth, which I have been researching recently, but now I've made this list, part of me wants the dark energy to be driven by repulsive gravity and not quintessence.

Would you be saddened if another fundamental interaction was discovered? More to research, more money for a physicist!

4 4 is a divisible number

Trying to share four cookies between two people? No problem. Trying to share five between two? You'll have to split a cookie! This is why imperial units matter.

Four cookies between 3 people? You'll have to REALLY split a cookie!

This, and that 4 is possibly my favourite number

5 Space in 4 dimensions is the highest-dimensional space featuring more than three convex regular figures

Okay, this is so true and there's no arguing with it. I'm having trouble on who to believe...

Once you extend into the fifth, you get irregular polytopes.

6 There are 4 base types in DNA

Uracil is in RNA, so does not count.

7 The number 4 is considered a death warning in Japanese culture

That's Chinese culture not Japanese

I thought you LIKED Japan? Let alone, living!

8 4 is the most infrequent digit in the known digits of pi

Most of these items have something to do with math, science, or physics. But then again this is one of PositronWildhawk's lists after all.

Oh, and the 4th character of the number Pi. Considering "3", "." and "1" then comes "4"

Well, the fifth number is 5: 3.1415! Isn't that much more satisfying?

Funny at the same time, it's the 3rd digit.

9 The number 4 was used in ancient calendars for predicting lunar cycles

We know approximate it to four weeks, but the measurements then were incredibly accurate without the technology we have today.

10 4 is spelled with 4 letters
The Contenders
11 4 is the most common number on this list

It can't be true!

12 Atomic number of beryllium

I don't know what boron is for, but I like it now.

13 4 is a Lucas Number
14 You can yell "four" at a golf course and scare everybody
15 4 dimensions in Schrodinger mechanics
16 PositronWildhawk's 4th published list remained 4th most popular for a long time

My fifth list, on the contrary, isn't such a big hit. But it was my third that got me sudden popularity, and that makes me proud of it.

17 5 is spelled with 4 letters
18 4 is cosmic