Numbers

The **Numbers** are a marking that every passenger of the Infinity Train possesses when on board. They act as a sort of counter, indicating how far a passenger is to being able to leave the Train.

## Design

The Numbers are neon green glowing digits that appear on each passenger's hand, although they can go beyond the hand and expand into the rest of the arm and then body. The numbers are also surrounded by 2 brackets of the same color on the top and bottom.

A properly functioning number will always display as an integer. Numbers will go down when the passenger shows progress and up when they relapse. Upon hitting zero, the number will glow brightly and unlock an Exit Door to teleport the passenger back home.

If a passenger's problem is deemed impossible to solve or too paradoxical, the number will glitch and display itself as a random series of irrational numbers, only changing to zero if a proper solution is presented.

## Usage

### Creation

Numbers are created in The Passenger Preparation Car of the Infinity Train. When a passenger boards the Infinity Train, they are put to sleep. Once asleep, passengers are taken to a room where miniature One-One's copy their memories and turn them into Memory Tapes. The sleeping passengers are then transported to a room where several robots insert their memory tape into a large computer. The computer then analyses the passengers memory tape and uses a laser to engrave a number, based on the passengers lives and memories, on their hand.

### Changing

* The number goes up if a passenger does or says something that worsens their problems (The problem they need to work through on the train); Losing their progress.
* The number goes down if a passenger does or says something that shows emotional growth (Moving past their problems); Gaining progress.
* The number can change into different symbols (such as random mathematic symbols, random chemical symbols, emoticons, etc.) if a passenger has a problem that doesn't seem fixable, such as needing to get a denizen off the train.

### Tracking

Numbers can be monitored or tracked from the Passenger Preparation Car or from the Engine, showing the current value of the number of each passenger, but also they can be use in number trackers to show which train cars posses passengers, and the density quantity of passenger in each car.

## Trivia

* According to One-One's pre-recorded informative video, the Numbers are created by the Infinity Train based on passenger's lives to offer personalized experiences to passengers.
* Although a denizen of the train cannot be assigned a number, Lake was able to confuse One-One by projecting Jesse's number onto her hand where one would be. The projected number reaching zero granted Lake her own Exit Door.
	+ It is technically impossible for a denizen to have a number; Lake's exit most likely didn't have anything to do with the rules of the Train, but more about One-One's character.
* For the first two books in the series, when a protagonist manages to lower their numbers down to anything smaller than 10, it is a reference in the number of episodes left in the book.
* There is no limit in how big a number can be.
* When asked if Grace and Simon's numbers are working based on their original issue or their current issues Owen stated "Trauma can introduce new traumas". The more time Grace, Simon and Amelia have gone on without solving their original issue the more complex their problem becomes. Thus, these character's numbers rose that high due to multiple issues stringed to the original.

## Gallery

Tulip's starting numberTulip's starting number in the pilotNumber engraving machineA number being engrave in to a new passenger"A fake number"
## Reference

1. ↑ "Trauma can introduce new traumas. If you get on the train for one thing, it doesn't necessarily mean that getting better based on that original thing is going to help. Life changes you over time, and there is rarely one big traumatic event that changes you, it's many many MANY events over time. Grace and Simon's numbers, even Amelia's number, with the amount of time and energy they've put into getting those numbers up, have gotten a lot more complex." - Owen Dennis