Richard Dawkins gave us this idea in The Selfish Gene that genes are not altruistic and they do not care about the organism or the species or the planet but only about replication. Survival is a side effect and meaning is optional. Later the idea of the meme emerged as the cultural equivalent of the gene which is a unit of information that wants to replicate whether it is a tune or a phrase or a belief or a joke. Memes do not want to be true and they want to spread.

This distinction matters more now than ever because humans evolved as slow information processors who relied on friction where stories traveled through mouths and across generations shaped by context and memory and empathy. There was latency and cost and information had to be worth carrying. A rumor had to walk barefoot across villages while pausing for sleep and food and contradiction and death and by the time it arrived it was often worn down by reality. Now ideas travel at light speed from one amygdala to another without passing through understanding and the faster a piece of information moves the less time it spends being questioned. Memes have learned this well and a good meme does not ask for reflection but asks for a reaction because anger spreads faster than nuance and fear spreads faster than facts and certainty spreads faster than doubt.

Human societies are information systems where trust and cooperation and culture all depend on the quality of information flowing through them and when the system is polluted the behavior follows. Social media platforms are not neutral pipes but evolutionary environments where memes that spread are rewarded with reach and memes that slow people down are punished with invisibility. Over time this selects for the most aggressive and addictive and identity-affirming ideas. Just like genes, memes do not care if the host suffers and a meme that polarizes a society but gains engagement will win over one that heals.

We like to believe we are users of social media but in reality we are hosts and this is where the conversation around free speech often misses the point because the issue is not expression but amplification. Never in history has a species allowed its most primitive emotional triggers to be amplified at planetary scale in real time. When outrage becomes a currency then calm becomes a liability and when attention becomes scarce then extremity becomes strategy and when identity becomes content then disagreement becomes violence.

The tragedy is that humans are capable of much better information hygiene through slow thought and silence and restraint and context and patience but these traits do not trend. If genes shaped our bodies then memes are shaping our minds and genetic evolution takes millennia while memetic evolution takes weeks and societies do not have the immune system to adapt at this speed. In biology unchecked replication leads to cancer and in culture it leads to something similar. The question is whether we can choose which ideas we let live inside us.

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