If you have a story with the following prompt:

> go left

> go right

Where each of those is a branch in the story. Even if both branches converge eventually, all possibilities need to be in each branch. And so on. The number of summary tags is n! where n is the number of possible decisions.

Thus you very, very quickly end up with a very large dom. Browsers aren’t really optimized to display hundreds of thousands of these tags, so they crashed.