### Universal construction from low density starting conditions

Posted:

**March 8th, 2018, 3:35 pm**I'm working on a proof that this is possible:

Traffic light:

Mango:

Block:

Glider:

Traffic light:

Code: Select all

`#C Low density TL`

x = 5, y = 5, rule = B3/S23

2bobo$o$2bo$o3bo$2bo!

Mango:

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`#C Low density mango`

x = 5, y = 6, rule = B3/S23

b2o$4bo$2bo$$obobo$4bo!

Block:

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`#C Low density block`

x = 4, y = 4, rule = B3/S23

obo$3bo$bo$3bo!

Glider:

Code: Select all

`#C Low density glider:`

x = 5, y = 5, rule = B3/S23

bobo$4bo$obo$2bobo$o!