Comments on Specific Development Forum Posts

[hhyyrylainen]

@MeghalayanAge

So this is why AI populations crash, as a result of improper Darwinian Penalty on migrating populations. I wonder how the Darwinian Penalty affects the Player’s population, as the Player can both migrate and move to occupy two additional patches at once, effectively splitting the population into three subpopulations.

Seems unrelated. Because if I understood the original dev forum post correctly. The way it works is this:

• A species gets negative external effects, let’s say 600 population
• It has currently 1100 population in a patch so it could easily survive that
• However, the species has migrated 600 population from patch A to patch B
• Now the species only has 500 population in patch A and -600 external effects
• The end result is now that the species is extinct in patch A and has 600 population in patch B

From the wording the suggested fix is:

• Instead of getting the full penalty, the penalty is scaled to ((1100 - 600) / 1100) * -600 = -272.73
• So now the end result would instead be that the species has 227 population in patch A and 600 population in patch B

So the species did not in fact go extinct in patch A due to external effects.

However the final impact of this kind of change would be limited to external effects not the player throwing an AI species out of all miches. That would still totally result in a patch extinction. So this extra “kindness” to the species would only help in the case where the external effect size was small enough so that when it gets scaled it is low enough not to cause patch extinction.

@MeghalayanAge

Good idea, as it seems balanced. I do wonder how small the Darwinian Penalty would be for absolutely gigantic player made cells if this new version of the Darwinian Penalty is implemented.

You missed the keyword population; it is not the size of the species but the population that the external effect would be scaled based on.