It sounds like you read the word "dark matter" and didn't do any research beyond that. It's not just that we can't see dark matter, it's that it interacts very

It sounds like you read the word "dark matter" and didn't do any research beyond that. It's not just that we can't see dark matter, it's that it interacts very weakly with the electromagnetic field. It doesn't even react with itself very much. At the risk of suggesting other leaps based on the name, a better layman's term would be "ghost matter".