May contain unevaluated thunks
I’m not going to go into the depths of caching in pull-based reactivity, but as the famous aphorism reminds us, one of the hardest things in computer science is cache invalidation. And typically, the more efficient a cache is at reducing work, the harder cache invalidation becomes. So an easy approach might be generation counters, where every time we change any input, all cached values are invalidated immediately, and a harder approach might be an LRU cache of all a node’s dependencies where we need to consider how many entries to cache, and how to determine equality3.
，详情可参考新收录的资料
Here is a Compiler Explorer link that shows the two options.
18:35, 10 марта 2026Мир。新收录的资料对此有专业解读
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Indeed, in the first case, there was sustained double-digit growth of U.S. M2 from July 1971 until June 1973. During that period, M2 was growing at an average annual rate of 12.5%. That is roughly double the rate of monetary growth consistent with realizing an inflation rate of around 2% per year in the U.S. Not surprisingly, annual headline CPI inflation rose from 3.7% in January 1973 to a peak of 12.3% in December 1974, averaging 8.6% over those two years. Similarly, between January 1976 and December 1978, M2 growth averaged 11.2% per year. This led directly to a second surge of inflation, in which the average rate jumped from 7.6% in 1978 to 11.3%, 13.5%, and 10.3% in 1979, 1980, and 1981, respectively. In short, the surges in inflation that occurred at the same time as the two oil price spikes were already baked in the cake long before the oil crises erupted.。关于这个话题，新收录的资料提供了深入分析