I'm also looking forward to what Apple Mail and other local clients are able to do. My laptop's CPU is idle most of the time, why not use that extra CPU time to do something cool like filter spam better?
Microsoft already does that, and its Antimalware agent is the bane of my existence. It will see idle machines spin up their fans to full and drain batteries within a short few hours. No thank you!
When plugged into the grid, it makes sense to spend a few cents of energy a day to filter out unwanted solicitations, harassment that you may not want to see, scam emails or texts, etc.
If I didn't have to worry about my grandparents getting scammed because they were having 99.99% of it effectively filtered or warned about at one layer or another before it actually became a problem...can you imagine how much you could lower that type of fraud/abuse?
That would cost money and lower the profits of the people that own/control the grid. I sometimes wonder how much money these robber barons spend on lobbying and other PR campaigns to convince that climate change isn't a problem and that the grid is just fine. It's one of those unanswerable questions I'm sure, but how much progress could be made by redirecting that amount of money to actually improving the grid itself?
the power cord has to have a data link (USB? or just networking over power line itself) through which the power outlet can tell the computer how much does the energy cost at any given time. this is a very welcome but very expensive addition to the infrastructure.
My guess is you wouldn't lower it by much because there's more incentives for attackers than for defenders to invest in these approaches, so it's likely that by the time grandmas are running LLM-based anti-fraud tooling the attackers will already be running LLM-based attacks as well.