Every day I find a new reason to hate my Nokia phone.
No matter what you want it to do; it always seems to take far more keystrokes than necessary.
Today's beef is specifically Multi-tap, which is the ubiquitous text entry system using a telephone keypad. I know multi-tap isn't specific to Nokia, and wasn’t even invented by them (see Tegic), but they licensed it -- so they are guilty.
It requires single, double, triple, or quadruple-pressing a key in order to get the desired letter. For example, if you want to type the letter "E" you would press 33. The first time you press 3, it assumes you meant "D", but when you press it again, it decides you really meant "E".
Right away you see the problem. E is by far the most common letter in English, clocking in at an astounding 12.6%. The letter D is a paltry 3.7%. So more than 3 out of 4 times, Multi-Tap forces you to do twice as much work to get the letter you wanted. And what if you wanted to type S? It’s even worse: The S is a quadruple-press, sitting last on the 7 key with it's pals PQRS.
(By the way am I the only one who thinks Q comes too early in the alphabet? It should be moved to right before X. And W? It's a double V. Any idiot can see that. Anyway I digress.)
The frequencies:
P 2.3%
Q 0.2%
R 6.0%
S 6.6%
When you press 7, it decides you want the P key even though its the 3rd most likely choice. And Q? Fuggeddaboutit. It is 33 times more likely that you wanted an S instead of a Q, but you have to do twice as much work to get that S.
So what does this mean to your life in practice? If you send 20 text messages at 5 words per message and 5 letters per word, you will have typed 500 letters. Statistically you will have wanted exactly 33 S, 30 R, 11 P, and just 1 Q. To get those letters you will have pressed:
P: 11*1 = 11
Q: 1*2 = 2
R: 30*3 = 90
S: 33*4 = 132
---------------------
235 KEY PRESSES.
If the letters on a key were arranged in order of frequencies (SRPQ) instead of (PQRS), you would have pressed:
S: 33*1 = 33
R: 30*2 = 60
P: 11*3 = 33
Q: 1*4 = 4
---------------------
130 KEY PRESSES.
You will have been annoyed 105 less times. Multiply that by the number of SMS text messages and you will see why why most modern mass murders are cell phone induced [citation needed].
The 7 key is probably the worst offender, but other keys are pretty stupid too. 3DEF is idiotic. 4GHI and 6MNO suck bone as well. Only the 8TUV is accidentally arranged in correct frequency order. I’m telling you the 8 key is a fucking joy by comparison. I don’t mind the 5JKL key so much even though the L is 40 times more likely than the J, because I probably type the J more often than is predicted by statistics alone. I know a Jenny and a Lenny, so I don’t know what the hell should happen in that case. Perhaps get rid of all friends who have names that start with one of those letters.
And this is just multi-tap. Wait until I have time to start ranting about T9.