Bots and Simulations > Evolution and Internet Sharing Sims

population control

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maheshjr2000:
what should I set the age cost to to have efficient population control.

Numsgil:
It's going to depend a great deal on a large number of other settings.  In general most costs are probably in a good range if they're set to something like 1E-3 or 1E-4.  Not sure what a good range for age costs would be, I haven't really played around with it too much.

maheshjr2000:
Hmm well I set my costs to 2 and the population seemed to stabilized but it boomed like crazy after a few 100 cycles. My longest living bot was like 6000 cycles old!

EricL:
It does indeed depend completely on the effeciency of your organisms in utilizing (either directly or indirectly) the energy coming into the sim via autotrophs, the amount of that energy and whether you even want to use an age cost.  Some people think this cost artificial as it does not tax an actual genomic, metabolic  or morphogenic action.  It taxes being alive (or being old if you increase it logrithmicly) which I think of as a corse grain catch all metabolic cost.

But the larger question you pose is "once I decide to impose certain costs, what should they be and do they need to change over time as bots evolve effeciencies?" is a great question and is exactly why I added the dynamic features I did in 2.42.6.

Set the age cost at 1.  Or 0.01.  Or 0.0001.  Then let the dynaimc population feature adjust the multiplier to keep the taget population near what you want.

shvarz:
I have to say that dynamic costs is the best feature that came to DB in quite a long time.  It works magic!  Magic!

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