I should have included a bit more of the detail Tuhin told me in the interview, but the Euclidean-distance model for keyboard mashing is part of the fast-fail a

I should have included a bit more of the detail Tuhin told me in the interview, but the Euclidean-distance model for keyboard mashing is part of the fast-fail antifraud layer, - failing fast on asdfasdfasdf@asdf.com is cheaper than making a network request to a 3rd party processor to see if the data is valid.