Going with the cancer metaphor, what does "late-stage" capitalism look like? How do we know that it will happen? Are there any other possible timelines that has something resembling capitalism but is not terrible? Capitalism is a pretty broad term that can describe all types of economies from the american gilded age to modern social democracies, and while I would certainly consider various forms of extreme capitalism to be cancerous to a functioning society, are they truly representative of all types of capitalist systems?

Edit: spelling