There is one primitive tech guy who actually got iron smelting working enough to make a useable knife[1]. This naturally took him an enormous amount of work an

There is one primitive tech guy who actually got iron smelting working enough to make a useable knife[1]. This naturally took him an enormous amount of work and patience. [1] https://www.youtube.com/watch?v=pXniZZly4oA https://www.youtube.com/watch?v=pXniZZly4oA