Arcueid
Should it use items? For example you have one path which leads to a locked door, but you need a key to open it. You go back 2 scenes and open something to find a key.
This would change it from a visual novel to a click and point adventure without the click and point... or something.
Could make it optional maybe? It sounds definitely interesting.
arc
Absolutely! I wanted to do a dungeon crawl where (for example) you need a key to access a certain room. It can still be done without memory/items/inventory using 2 different pages (the same room but one where you have the key and one where you don't) but this would have an upper bound of 2 to the power of N pages.