Implementation probably incorrect

[martin-eden]

Current implementation of Life is probably incorrect:

• There should be no stable configurations like

X.
XX

-- they should mutate to stable block

XX
XX

• There almost always "semaphores" present

XXX

which flips to

X
X
X

every turn

Traditional implementation usually populates every generation from initially empty field, calculating cell presence by inspecting neighbour 9 cells from previous grid for every cell.

Then you'll see "blocks", "hives", "semaphores", "gliders", "frigates" and all other stuff. Even self-replicated custom configurations were found.

[hleb-kastseika]

Many thanks for your opinion and review, I agree that this implementation works not fine and I will fix it