Numbers: Turning Digits into Pictures
This chapter teaches the Major System: turning digits into sounds, sounds into words, and words into images you can actually remember.
Why Numbers Are Hard
A phone number is ten arbitrary digits. A credit card is sixteen. Pi is unbounded.
The raw material is abstract: "7" doesn't look or feel like anything. You can't visualize "7" the way you can visualize "apple". This is why rote memorization of numbers fails fast, and why you forget phone numbers the moment your phone does the remembering for you.
The Major System solves this by turning every digit into a consonant sound, turning strings of digits into words (with vowels added freely), and turning words into images. Images are what your brain was built for; once a number is an image, it's just another thing to place in a palace or link into a story.
The Consonant Mapping
Memorize this table. It's the whole foundation.
0 s, z, soft c (zero starts with "z")
1 t, d (one downstroke)
2 n (n has 2 downstrokes)
3 m (m has 3 downstrokes)
4 r (four ends in "r")
5 l (Roman 50 = L)
6 sh, ch, j (mirror of 6 looks like a cursive j)
7 k, hard c, q (K has two 7s in it, sort of)
8 f, v (cursive f looks like an 8)
9 p, b (mirror of 9 is a P)
The mnemonics for the mnemonics are goofy, but they work. Spend 20 minutes drilling the table until you can read off any digit's sound without hesitation.
Vowels are free. A, E, I, O, U, Y, and also H and W don't map to anything. They fill in between consonants to make pronounceable words.
Double letters count once. "Passed" has one s-sound, so p, s, d → 9, 0, 1. The rule is: consonant sound, not letter.
Turning Digits into Words
Single digits to simple words:
1 tie, toe, doe
2 Noah, new
3 ma, Amy
4 ray, row, oar
5 law, eel
6 shoe, jaw
7 cow, key
8 ivy, fee
9 pie, boy
Pairs of digits to words:
12 tan (t + n = 1, 2)
23 Nemo (n + m = 2, 3)
31 mat (m + t = 3, 1)
42 rain (r + n = 4, 2)
56 leash (l + sh = 5, 6)
75 coal (k + l = 7, 5)
94 bear (b + r = 9, 4)
The pattern: read digits, get consonants, drop in vowels, get a word. The word gives you an image.
Examples
A Phone Number
Number: 555-1234.
Digits: 5 5 5 1 2 3 4.
Consonants: l l l t n m r.
Group them into words with added vowels: "lily tan mower" → a lily-colored tiger in a tan shirt mowing a lawn. Weird, vivid, memorable.
Alternate grouping: "la-la-la 1-2-3-4" → 555 (la-la-la) 1234 (a staircase). A choir singing "la la la" on a staircase. Also fine.
The grouping you choose doesn't matter; what matters is that you can reverse it. "lily tan mower" → l-l-l, t-n, m-r → 5-5-5, 1-2, 3-4 → 5551234.
A PIN
PIN: 4815.
Consonants: 4=r, 8=f/v, 1=t/d, 5=l. So r-f-t-l or r-v-t-l.
Words: "raft hill" → a life raft balancing on top of a hill. Easy to picture. Easy to recall.
A Date
1969: the moon landing year. Digits 1, 9, 6, 9.
Consonants: t, p, ch/sh/j, p.
Words: "tape shop" → walking into a tape shop on the moon.
Pair this image with the fact: Neil Armstrong walks into a tape shop on the moon. The date and the event live in one scene.
Building a 00-99 Peg List
Serious practitioners build a full list of 100 words, one per number from 00 to 99. These are the "pegs" for any digit pair. Once memorized, any number breaks into pairs, and each pair has a ready image.
You don't need to build this in a weekend. Start with 00-20:
00 Zeus (mythological, vivid)
01 seat
02 sun
03 sum
04 sore
05 sail
06 sash
07 sock
08 safe
09 soap
10 toes
11 tot
12 tan
13 tomb
14 tyre
15 tail
16 dish
17 duck
18 dove
19 tub
20 nose
Build up to 99 gradually. When you know 00-99, a ten-digit number becomes five images, which you can place in a palace. Suddenly a phone number is easy.
The PAO System
The serious upgrade: for each number from 00 to 99, store three things:
- A Person
- An Action
- An Object
Example:
07 James Bond shooting a silencer
35 Elvis hip-thrust a microphone
42 Ron Weasley flying a broomstick
Now any six-digit number becomes: person from the first pair, action from the second pair, object from the third pair.
073542 James Bond hip-thrusting a broomstick
One image, six digits. Place it in a palace. You can memorize 100-digit numbers this way, and memory competitors memorize decks of 52 cards in under a minute using PAO on cards.
PAO takes months to build well. Don't start here; build a basic 00-99 peg list first.
Practical Applications
Phone Numbers
Break into groups (three, three, four for US format; local conventions otherwise). Encode each group as a word or two. Attach to a palace or to the person whose number it is.
PINs and Short Codes
Four digits → two Major pairs → two images. The code becomes a tiny scene.
Caveat: don't use common words for actual passwords. Encoding an image for your PIN is fine (it's for you). For passwords, use a password manager.
Historical Dates
Instead of memorizing "1969 moon landing", remember "a tape shop on the moon". When the date or event comes up, the image pulls the other.
Pi
This is how memorizers recite pi to thousands of digits. They break it into pairs, map each pair to a Major image or PAO image, and place them in a long palace. The palace holds them in order.
A modest goal: the first 20 digits. 3.14159265358979323846.
Pairs: 31, 41, 59, 26, 53, 58, 97, 93, 23, 84, 6.
Using a basic peg list, that's 10 images plus a trailing "shoe" for 6. Placed in a 10-station palace, recalled in order, you have 20 digits. A week of practice; unremarkable for a memorizer.
A Starter Drill
Take your phone number. Break into pairs. Encode each pair as a Major word.
Example (fictional): 555-819-2346.
Pairs: 55, 58, 19, 23, 46.
Words: "lily" (55), "leaf" (58), "tub" (19), "name" (23), "rash" (46).
Scene: a lily growing out of a leaf floating on a tub, labeled with your name, rash spreading across it.
Give it 30 seconds. Try to recall your own phone number as a scene. If you can, you've just learned the first practical use of the Major System.
Common Pitfalls
Not memorizing the consonant table cold. If you have to think "4 = r?" mid-encoding, you'll fail. Drill it until it's automatic.
Counting letters instead of sounds. "Passed" has two S's but one S sound. The system maps to sounds.
Skipping vowels in decoding. Decoding is consonants only. "Tomato" has t, m, t → 1, 3, 1 → 131. The vowels don't count.
Trying to learn 100 pegs in a day. Build up slowly. 10 a day for 10 days gets you there.
Using the Major System for short things you'll forget immediately. A 4-digit PIN you use daily doesn't need the full system. Use it for numbers that matter and that you'll only see once or twice.
Next Steps
Continue to 08-names-and-faces.md for the most-requested memory skill.