A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

There are tonnes of ways to arrange a bookshelf, aye?

Letâs take a bookshelf to

understand High Cardinality.

The explosion of unique data combinations in a time series data base is

Cardinality.

Aliens? Does the book have alien civilizations or not?

Think carefully about your answer!

*Hint: It's not 16.

1 2 3 4 5 6 7 8 9 10

The Alien label applies only to the Sci-Fi genre, so the answer isâŚ 10

Imagine increasing the number of

variables in this list, such asâŚ

Length: Under 300 pages

Weight: Under 200, True Story, etcâŚ

Suddenly, the dimensions explode.

This is **High Cardinality.**

High Cardinality is why systems break, your Uber cabs donât arrive on time, and your food order vanishes every once in a while. đ

These are complex problems that need unique solutions.