I'd say placebo. However it's very possible that if you recently bought your Mac or recently updated the OS, the computer was indexing so it may have felt a little slower beforehand, and the hiding of the dock coincided with that finishing.
I'd say placebo. However it's very possible that if you recently bought your Mac or recently updated the OS, the computer was indexing so it may have felt a little slower beforehand, and the hiding of the dock coincided with that finishing.