If I recall, both stock and option market makers were allowed to fail to deliver, which would typically be cheaper than cost of borrowing, which made it another good source of edge that was unavailable to non-market makers.
Great from a manufacturing perspective, but I wonder what repairability is going to be like. It seems like it will be a lot more likely to write off a whole car if the whole frame is one piece.
If you want to avoid crowds, the two busiest days for the courthouse we got married in are Thanksgiving Friday and the last Friday in December. There were six judges on the day we went - typically it’s handled by one judge. (That was 2018, who knows how it’s going to be this year. Might even get shut down in some places.)
The MAX is also known as the 737-8200. Now that the product recognition is working against it, I think we will see the forgettable name a lot more.
At least in the US you can typically cancel a flight for free within the first 24 hours if it is booked more than seven days out, if that helps.
You are right that the airline can change the type of plane like that but it is uncommon. A much more common way to end up on a different type of plane than was booked is weather cancellation. (Personally, I don't like most of the regional jets, but by the end of the day of waiting for a 1 hour flight, I'll take anything.)