Hi Dennis, and welcome.

Adequate equipment is a relative thing. Rather than think "What is enough", think in terms of bare minimals. Foremost in any list is useful knowledge and a way of thinking. From there, you consider the types of situations you are most likely to find yourself in that would require equipping yourself beyond EDC, and then think of what is the minimum you would need to satisfy your basic needs. This way of approaching things will yeild a smaller, more manageable list than doing the what if... type of planning, for which an equipment list never ends.

From a minimalist perspective, then, you can determine what you'd need to get by on and then you can, with some forethought and a little practical application, determine what upgrades/additions are going to be the best bang for the buck. You weigh the perceived risk against the additional encumberance factors and you will find that there are a lot of things you think you need but could really do without in a pinch.

It helps to ask yourself once in a while, "How hard would it be if I didn't have a particular item with me in a survival situation?" A lot of stuff comes out of my bag when I do that, especially after hodding a 40 lb bag around all day.