> In reality, only a handful of people in the world understand in detail all the intricacies of the various ways our body interacts with drug substances.
That is not science, and it is not what is meant when people talk about trusting the science. Science is empiricism. The science that supports the efficacy of vaccination is the data from the trials that shows a reduction in cases. The science supporting safety is similar. This data is something anyone can understand with sufficient knowledge about probability and statistics. That level of knowledge is somewhat rare, but nowhere near as uncommon as the theoretical knowledge you are describing.
Caching is way more impactful than a 1% speed up. It is hard to know exactly, because it is impossible to disable on most modern operating systems, but I wouldn’t be surprised if it were an order of magnitude improvement in some situations.
By the way, caching doesn’t prevent RAM for being used by applications. If an application wants more memory, the os can always just evict some of the cache.
That is not science, and it is not what is meant when people talk about trusting the science. Science is empiricism. The science that supports the efficacy of vaccination is the data from the trials that shows a reduction in cases. The science supporting safety is similar. This data is something anyone can understand with sufficient knowledge about probability and statistics. That level of knowledge is somewhat rare, but nowhere near as uncommon as the theoretical knowledge you are describing.