I think meditation is effective amongst those that demonstrate a scatterbrain situation. Like a lot of tools that deal with stress and anxiety, they simply are distractions. They teach you to turn the noise down and provide a distraction, even if you're told it's not focussing on anything. Not focussing on anything means you've actively shut off the noise. Then the physiological symptoms go away and you've re-mapped your current route. I find myself adopting distraction techniques all the time. Even work provides a distraction to the situation I'm in.

On a side note, check out the OpenAI model called Consensus, which has been trained on published science journals. It's a great way to get insight past the generalistic models, which have limited exposure to proper science papers. Take your science questions there.