Who we are with is very important. For some people (myself included), the percentage of people who are beneficial to be around is very low compared to the gene

Who we are with is very important. For some people (myself included), the percentage of people who are beneficial to be around is very low compared to the general population. And since so few people result in positive experiences (and since solitude doesn't usually cause feelings of sadness, but rather freedom), I would usually choose to be alone. Given a choice, I would like 60% total solitude, 10-20% general human interaction, and the rest ideally the good meaningful, connective relationships.