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Equation 14 · Part 3 · The Bandwidth of Culture: Transmission Fidelity to 2100

Symbol rho_m

ρt=ρh+(ρm−ρh) st,ρm<ρh\rho_t = \rho_h + (\rho_m - \rho_h)\, s_t, \qquad \rho_m < \rho_h
ρm\rho_m

What this part means

the fidelity of a machine-mediated re-emission — empirically lower per the tail-collapse result above —.

Its job in the formula

rhomo_m is one of the signed contributions combined to compute the quantity on the left.

Where the article explains it

where ρh\rho_h is ordinary human-to-human transmission fidelity, ρm\rho_m is the fidelity of a machine-mediated re-emission — empirically lower per the tail-collapse result above — and sts_t is the share of newly circulating content, at time t , that is machine-generated rather than human-originated.

The passage around this formula

…and colleagues describe operates by pulling ρt\rho_t itself down as the share of machine-mediated content in what gets re-ingested rises: ρt=ρh+(ρm−ρh) st,ρm<ρh\rho_t = \rho_h + (\rho_m - \rho_h)\, s_t, \qquad \rho_m < \rho_h. where ρh\rho_h is ordinary human-to-human transmission fidelity, ρm\rho_m is the fidelity of a machine-mediated re-emission — empirically lower per the tail-collapse result above — and sts_t is the share of newly circulating content, at time t , that is machine-generated rather than human-originated. This decomposition does one useful piece of work: it turns “will…

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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