>>114040441The advantage of altruism is the improvement of society as a whole.
A society of people who help without asking for a direct advantage to themselves and restrain themselves to not harm others without legal requirement to do so is a society that benefits all.
In an altruistic society you will not get robbed because the pressure to become a robber is lessened.
If you require help, you can count on receiving it. The indirect reciprocity of society-wide altruism means that if you freely help others, you can count on finding others who will help you, even if you did not help them first. Because you are effectively a society-sized in-group of sorts.
And this mutual readiness to help elevates everyone's wellness because people who experience this kind of help feel better, as well as people who helped others.
Just the endorphins your brain releases because you know you did a good thing are effectively the evolutionary proof that altruism is beneficial. Because genetic survival is largely independent of the individual. The gene pool has to survive and with it your genetic material to about 99.9%.
>>114040740>>114040776 Your genes are practically identical to those of the guy next to you.
The real difference in what you pass on is culture, values and possessions.
Adopting an infant in good health is little different from making one yourself. Remember, unless you clone yourself you only pass on half the genome.
