What is laziness, really?
Why would the human species ever “evolve” laziness?
My only guess is that laziness is actually a weakness.
It is a sluggish and stagnant will that had never been strengthened?
Any info?
Back when humans ran together in packs, wild and free through the wilderness before anyone learnt how to demesticate themselves into what we now know as ‘civilisation’, humans didn’t really have a lot to do. 30-40% of a person’s time was spent sleeping and I’ve heard figures of as low as 10% of their time for the next biggest time consumer which was getting food. Laziness may have then evolved as a ‘stand-by mode’ so that people didn’t go completely crazy with all that spare time. (There was no ILP back then)
You are probably thinking that rather than just sitting around, Apemen would have spent the rest of the time performing various ‘female-centric’ sex orientated activities, but you’d be forgetting that females only evolved the orgasm in the mid 1900s. 
It seems to me that “lazy” is always something that other people call you. I think that few people call themselves lazy.
I have noticed that “lazy” people tend to get energized for things that they like to do. For instance, and “ADHD” kid might be observed playing video games, and doing well at them, for hours on end. That’s because he is motivated to do well at them.
So, a lazy person might just be very selective in what they want to or will do that is outside of their direct desire.
Laziness has a huge selective advantage! Remember, we are pack animals, so think of it in a game-theory type situation. If you can get someone else to do your work for you, you benefit greatly. It is just another form of selfishness.
And that’s the reason we view laziness in such a poor light. If a member of the pack is noticably not pulling their weight, we don’t like them because we have to pick up their slack.
What!? No.
And what if laziness was just the will to concerve energy?
I know of people who have sex for many hours per day, and they are very eager to do this and would feel bad if they could not, all because of the brain’s natural, chemical motivators. If people were like: “auh, auh! AUAH!” after an hour of productive work [at a job or a farm or whatever] then I bet you that they would work for free!
not true, two things we love… money and sex. if we feel the same pleasure in our work as we feel in sex, why would we give up money when we can get both the money and the pleasure we receive from sex?