And yet even with these 15 minutes you have to immediately mentally reconstruct the context of this meeting and then actively listen to what the other person sa

And yet even with these 15 minutes you have to immediately mentally reconstruct the context of this meeting and then actively listen to what the other person says, figure out if they actually mean what they ask (quite commonly the issue is different), and then immediately jump into another meeting, and you can't just forget what happened during that 15 minutes. You have to carry this mental model of conversation and context (typically multiple ones) all the day with you. Then you have to actively prioritize across the various contexts and deliver value for all of them, while being in the meetings for the better part of the day. It's a different side of the same coin.