I know Aikido. I know lots of what he said as Aikido. Knowing is not data.
When you know you don't have to remember.
I feel sorry for all those who carry all that data around in their heads. Cups still full.
Sounds dangerous to me: Knowledge obfuscates as well as reveals; hence the need to constantly question, both the world around you and yourself. While data doesn't equate to knowledge, it must match up or one of the two is false. Data is fact. Fact is truth. Truth is reality. Not all data are accurate, but insofaras they are, they determine the validity of what one knows.