I liked this article since it points out a problem in math where it can be hard to know what is currently known. Perhaps a result can be proven using a little

I liked this article since it points out a problem in math where it can be hard to know what is currently known. Perhaps a result can be proven using a little known proposition in a completely different area of math, but it is hard to find that result in the literature. That is one reason I came up with https://mathlore.org https://mathlore.org. It is a place to collect mathematical info (with links to articles for a deeper look) so you or others can find it later when you need it. It supports of public collection of math info as well as allowing you to build your own private collection so you can keep track of what you have learned. The hope is it will be useful to others to help learn math and prove new theorems.