Maybe clever is the wrong word? Perhaps analytical is a better word. I'm just musing. I think the more you think about life, the more crap it seems. I'm not actively unhappy but I wouldn't say I'm a hugely happy person. I think way too much. So for example, at a party or event, I find it hard to let loose. I can't switch off my analytical musings on what's going on around me and as a consequence, I don't have a huge amount of fun.
Maybe this isn't intelligence as such but over thinking/analysing
Anyone else like this?