That applies to everyone. Everyone will be, is likely to be later, or most likely IS addicted to something: caffeine? their lovers? orgasms? money/credit? shopping? chocolate? unhealthy floury carbs? cheese? power over underlings?
if any of these are hard to go without in their current consumed amounts, they're addictions.
I guess that's because how brain receptors work for anyone. Still, author is talking about people that are LESS satisfied than the norm, so they always need more (like addicts).
if any of these are hard to go without in their current consumed amounts, they're addictions.