There are many problems which are provably unsolvable in the general case but it is nevertheless of interest to see how well we can do in spite of that fact, be

There are many problems which are provably unsolvable in the general case but it is nevertheless of interest to see how well we can do in spite of that fact, because they are useful problems to solve even approximately. A survey of internet properties and how they each solve this problem for their own domains seems reasonable to consider as "serious detail."