> Imagine how frustrated you’d be if every now and then, an application simply refused to add items to your cart, navigate to a certain page, or charge your credit card

Sort of interesting that this is framed as a wouldn’t-it-be-awful-if hypothetical; I feel like on the contrary, and for some value of “every now and then,” this is most people’s daily experience of interacting with most commerce websites.

> The truth is, these minor refusals happen surprisingly often, but users never know because of systems dedicated to intercepting those errors and running the erroneous code again.

...Or users do know, and just try again? Fault tolerance has been outsourced to the customer.