To be up to speed means having the latest information or understanding about a situation. It is used when someone knows enough to follow what is happening.
The expression comes from machines and vehicles reaching their proper operating speed. Once something is up to speed, it is working at the level needed to function correctly.
The expression comes from machines and vehicles reaching their proper operating speed. Once something is up to speed, it is working at the level needed to function correctly.
Give me a few minutes to read the notes so I can get up to speed.