The majority of the tube network is pretty much already at peak capacity, with trains on the Victoria, Jubilee and Northern being full autonomous with moving block systems as separation distance can now only be maintained through autonomous systems. I think an express service would be wonderful but it would require careful orchestration.
I think it might be worth increasing the line speed through signaling upgrades and more automation.
Everything works well. The unix filesystem works well unlike wsl on windows. The trackpad feels like an extension of me rather than something I'm grappling with. You can close the lid and not worry about whether it will wake up when you reopen it. Software/OS upgrade support is great, my old laptop died on me when I upgraded to windows 10, I'm now on a 2013 Macbook Air and it feels as if it were new and it's still running the latest OS. The ecosystem is also important, the cohesion between apple devices definitely removes a pain point, particularly copy and pasting between devices, opening browser windows from your phone on your laptop etc.
I feel all these minor annoyances are worth the premium for me and I'm about to . Don't get me wrong, MacOS isn't perfect but it's a better experience than Windows for me, and Linux is a pain to get setup on a laptop. The biggest one for me is the trackpad on Windows and Linux really suck.
I think it might be worth increasing the line speed through signaling upgrades and more automation.