"Under fully automated luxury communism," Aaron Bastani argues, "we will see more of the world than ever before, eat varieties of food we have never heard of, and lead lives equivalent – if we so wish – to those of today’s billionaires. Luxury will pervade everything as a society based on waged work becomes as much a relic as the feudal peasant ..." Summarize Bastani’s argument and explain whether you share or not his optimism