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Equation 8 · Part 3 · Model Systems in 2035: Four Scenarios, Their Signals, and What Would Falsify Them

Symbol K

ttoken≳W+KB,t_{\mathrm{token}} \gtrsim \frac{W + K}{B},
KK

What this part means

the cache bytes.

Its job in the formula

K occurs above the fraction bar. The numerator is divided by the entire denominator below it.

Where the article explains it

where W is the weight bytes touched and K the cache bytes.

The passage around this formula

…sits on the wrong side of this: generating one token requires streaming the weights and the accumulated key–value cache, so decode time is bounded below by ttoken≳W+KBt_{\mathrm{token}} \gtrsim \frac{W + K}{B}. where W is the weight bytes touched and K the cache bytes. Pope and colleagues formalised the partitioning analysis behind this and showed how latency, throughput and cost trade against one another under different sharding layouts [ 12 ] . The mitigations are well documented and all attack the numerator or the batch: grouped-query…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the surrounding passage

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