@harlequin phil,
Hi, I just joined as I woulkd like to read rather try and answer for awhile. I have been involved in few philosophical debates/chats. I hope my thought process evolves the more i read!
The question "Do humans need a purpose"feels too short or is ambiguous the right word. ? When one says 'NEEDS' in this question what is that word implying?
I'm unemployed and I feel truly without purpose. I really WANT a purpose. Yet I go on day after day after month without any sense of purpose. So i could say Ive proven to myself I need not have purpose. To live.
I just read Origin of species. I think im atheist now. But that has no bearing on this .
Do dolphins need to have purpose ? Does my dog need purpose when I can see he loves just being around me wherever i go on the farm and whatever I am doing he is happy to just be by my side. To go off on a tangent , my big black Weinmerana rottwheiler cross got jelous for attention when I got a new pup. He knew to kill the free range chickens was going to make me mad at him and rouse and smack him. He began killing one every day and leaving it at the front stairs to the homestead. Each time he was smacked and roused at. I am convinced he preferred negative attention in preference to not getting as much as before the new pup arrived. After 6 days of dead chickens I became very angry with him, He got the message and the killing stopped ,plus I also gave him more of my time and a little less of the new pup.
Also i don't believe in Free Will , ill explain that definition as i understand it later. My dog was acting according to natural laws. He had to kill to satisfy his need for attention. He had to stop killing to satisfy his need not to be punished.