This is a legit technique, has been for a loong time. You'd be surprised what they used to call it! [0] [0]: https://en.wikipedia.org/wiki/Echo_chamber https:/

This is a legit technique, has been for a loong time. You'd be surprised what they used to call it! [0] [0]: https://en.wikipedia.org/wiki/Echo_chamber https://en.wikipedia.org/wiki/Echo_chamber