Your company's memory shouldn't live in a wiki
Wikis and knowledge bases are written by people and go stale the day after. A Company Brain builds itself from your tools and stays current, because it reads them, not you.
Every company has a knowledge graveyard. A wiki, a folder of docs, a Notion space that was going to be the single source of truth. For about two weeks it was. Then reality moved, the docs did not, and everyone quietly went back to asking each other in chat.
This is not a discipline problem, and you cannot fix it by trying harder.
Why wikis die
A wiki is written and maintained by people. That is its whole nature, and its whole flaw. Someone has to notice that something changed, decide it is worth writing down, and go update the page. In a busy company that almost never happens at the speed reality changes. So the wiki is wrong slightly more every day, and once people catch it being wrong a few times, they stop trusting it. A knowledge base nobody trusts is just storage.
The fix is not a better process
The instinct is to add process: templates, owners, a quarterly review. It buys you a cleaner graveyard. The fundamental issue remains, that you are asking humans to mirror, by hand, information that already lives somewhere else and is already changing without them.
A brain reads, it is not written
A Company Brain inverts this. Instead of people writing knowledge into it, it reads knowledge out of the tools you already use. When a deal closes in your CRM, a feature ships in your tracker, a customer emails, the brain reflects it, because it is looking at the source, not at a copy someone forgot to update. It also keeps the old version, so you get history for free instead of losing it.
Nobody maintains it. That is the point.
And it can be acted on
There is one more difference that a wiki can never close. A wiki is something you read. A Company Brain is something your AI agents act on. They answer from it, and they take real work forward in your tools using it. Current, trustworthy, and useful to more than just the person who happened to open the page.
If your company's memory still lives in a wiki, it is already a little out of date. See what a Company Brain is instead.