I love this!! :O

But what would you do when you have too many slices? When using panels you'd make a new page or just keep expanding downwards but with slices the only solution I can think of is making a second cake, maybe also separate the last slice of the first cake towards the second cake to use it as the first slice of the second cake and so that it looks cooool

There'd be a lot of wasted space but it sounds fun and it totally works for short comics/memes and for the ones that can loop infinitelly and/or start from any slice like this one!