The nether is a very hostile and repetitive enviroment. I hate it feom the time my arrow missed a ghast and hit a random pigman behind it.
Some time later, I tried repeatedly to survive in the nether without contact wih the overworld, but without success. First I tried to take just some iron sword, a pickaxe and some starting food. I thought I'd get food and material (while in one of my mini-bases) from the pigmen (rotten flesh, gold) and from nether fortresses. This failed after my pick broke. Every other try, I took more and more items, but without success.
So here comes my question: What items (minimaly) shoud I take to the nether to be able to survive for any period of time? Which items are crucial to survive?
I woud also say that being able to survive doesn't mean surviving in all casesmeans to be possible to survive whatever mother nether gives you, and surviving means "staying alive".