I find it is often helpful to adopt the Alpine philosophy. It took me a while to get used to. As an ex-Scout, the motto 'Be Prepared' seems to go with taking equipment to cover every eventuality, but that is entirely against the Alpine technique, which can be applied to all environments.
Essentially, you have to be very harsh with yourself and remove everything you can possibly do without. Less can be infinitely more and I often go on lengthy backpacking trip with no stove, no eating utensils, no sleeping mat, and no spare clothes. The upshot of this is that I can fit everything I need for a week into a 30-litre backpack.
This approach is best for highly arduous journeys (particularly mountaineering) but it is liberating in a way no other form of travel can be. The safety margin is reduced somewhat, but that gives you even more freedom in an odd kind of way.
I can fit everything needed for 5 days or so into a 35l rucsac, including food and I do have a fairly big safety margin. The alpine style I believe is a purer form of climbing. I suppose it depends on your enviroment as to what you can leave behind, up here you'd need some spare clothes, and a stove unless you were just going from forest to forest and liked cold food.
I think that's the beauty of the Alpine style, the fact that it can be adapted to so many different disciplines. In the Alps I would carry a really lightweight stove and titanium mug for heating water, and would also need a down jacket, but might not need a sleeping bag or bivvy bag (I'd use a bothy bag instead for myself and climbing partner). In Scotland I find it really comes into its own and a bivvybagging trip can be done on cold rations with no stove and hardly anything on your back. That's true freedom!
I would have thought the true freedom is being able to take a minimum of stuff and still live well, with hot food and such. In effect, true bushcraft.