Speed limit

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The speed limit is a constraint on how fast a ship or signal can travel across the CA plane over a given displacement (i.e., it's speed).

INSERT GLIDER, SIR ROBIN, P2 SPACESHIP

As evidenced by the LWSS, a spaceship traveling the speed limit does not necessarily have to also possess the minimum period possible, though the first two rows still have period 2.

Currently, spaceships are known to travel at the speed limit only for 3 displacements: (1,1) (Glider, (1,1)c/4), (2,1) (Sir Robin, and (1,0) (C/2 orthogonal, (1,0)c/2)

Signals can propogate faster in B3/S23 only in medium, such as the Lightspeed wire, 2c/3 wire, and 5c/9 wire and most fuses burn faster than the

INSERT DIAGRAM OF THE SPEED LIMIT CHART

In Other Rules

B3/S23 speed limits are not the standard across all rules.

Moore Neighborhood

In rules with S4 and S5, either with or without B0(+ or - B1) or B2, ships can travel at C/3 orthogonal, (2,1)c/5, and other seemingly impossible speeds in life.

INSERT EXAMPLES

Under birth conditions B2 (more specifically ISOTROPIC RULE), ships can travel orthogonally at the speed of light (C), as well as c/2 diagonal.

INSERT EXAMPLES

In certain rules, spaceships can also have lower speed limits than in life. For instance, in Just Friends, no ship can travel diagonally faster than C/6 (SOURCE, WHY/WHAT LACKING TRANSITIONS)

INSERT EXAMPLES, MAYBE PROOF

MAYBE INCLUDE B0

Other Neighborhoods

HEXAGONAL

LARGER THAN LIFE

See also

• C/3 diagonal