The Cache
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Cache memory is built from static RAM — very fast, expensive, small, volatile — sitting nearest the processor over the bus, and transparent to the programmer whose code it accelerates.
Show
An app speeds up between runs with no code change; the cache was doing its quiet work.
Watch for
Transparent means invisible, not irrelevant.