So over on the thread What is the most important bushcraft skill. I posted up
I think the concept of Foundational Skills is an important one. And something many can benefit in thinking about. Learning some basics is fine and can get you by in a lot of things, but really going deep and practicing certain things can have far reaching effects through many other skills due to how many things over lap.
The knife control and skills is the easiest example, and I don't think I need to go into why learning to control and use your knife exceptionally well can effect your other skills in the positive. In the other thread I mentioned how having skills with knots can improve your other skills. Knots is not something that grabs everyone as important, or they might just learn a few useful knots and call it good. But more knots you know more the task your using knots for improve. And same with many other skills.
My example of a bow and arrow, as mentioned with minimal skills one could make a bow and arrow looking thing but it would have little real function, but to make a functional bow and arrow takes a combo of many different skills. You need plant ID to pick the right materials, knife control to carve and tiller the bow, knots likely come in for the string as well as possibly plant id again if your making the string from natural cordage, if your making your own arrow heads your likely going to knap them which is a fairly involved skill, you will have to straighten your arrow shafts which takes a careful controlled fire, fletching and the arrow head need some sort of glue as well as a binding. It is amazing all the different skills that go into making this basic tool.
So how about we brainstorm some foundational skills. Lets define that as skills that improve upon more than two other skills. They may be simple skills or complex ones.
So the main ones already mentioned.
I could easily rattle off a bunch more, but will leave them for others to fill in as it is more fun to do together as a group.