Brain filters out patterns that aren't "new" or threatening in order to concentrate on differences. Watching the swirls above for 30-seconds gets "boring" to yo

Brain filters out patterns that aren't "new" or threatening in order to concentrate on differences. Watching the swirls above for 30-seconds gets "boring" to your brain so it begins to ignore them in order to optimize. Same effect can be experienced with audio if you work with a loud air compressor or other loud intense noise with a pattern for several minutes followed by silence or with vibration or smell.