I assume they are referring to systems like TPG in Geneva. Basically you buy a pass and when you get on an off a bus or street car there is no checking of payment it is just assumed everyone is "honoring" the agreement to pay. Every once and a while transit cops will board and check that everyone has a pass/has paid somehow and if you get caught not paying it can affect your ability to rent housing etc.
What I like about Chatbots vs SO is the ability to keep a running conversation instead of 3+ tabs and tuning the specificity toward my problem.
I've also noticed that if I look up my same question on SO I often find the source code the LLM copied. My fear is that if chatbots kill SO where will the LLM's copied code come from in the future?
There is this group-think on HN today that services are intentionally left out as part of the US trade balance. That confusion likely comes from tax and corporate structures. Ie all those profits are locked into sub-corps, so Apple-Cayman Islands or Google-Ireland (corporate tax havens) which is why they don't show up on the balance sheet as "trade" into the US (typically those sub-corps buy financial assets with those profits). Read the first chapters of Trade Wars are Class Wars for more depth.