Thank for you such a thorough response!
Obviously you’re one the authorities on this, so if you say we can’t get rid of tuples under the hood then I suppose that’s that, but if I could ask a little more about it would love to know a little more.
Is it fair to say that most of the reasons you gave are about why it might be complicated to implement, as opposed to why it would be unacceptably source breaking? The tuple labels thing sounds like the most source breaking possibility, and I would love to know if you think that this thing I posted the other day and tagged you and @hborla in is a relevant idea/could change anything