same!I always wonder and seems like it’s a top secret because nobody ever explains HOW the immigration actually works.We all know that “first come-first serve” doesn’t work,even though they say so

i feel like if the public ever found out how the immigration system works-everyone will be so mad and angry

Assuming that they follow the principle of "first come-first serve", they would start processing cases in the order received. Which sounds fair to me. This doesn't mean that cases will be approved in the same order though. The timing can vary a lot case by case. Some get multiple RFEs, some people live closer to busier field offices and have to wait longer for biometric and interviews. In my opinion, if they strictly enforced "first come-first served" to the approval timing, then it would be much less efficient. There is no reason for slowing down some cases just because they were received later. If a case can have an early bio and interview (due to the applicants location), then it would move faster and there is nothing wrong with that IMO. If you add the randomness caused by the individual differences in cases, then you should expect that approval timings must look a bit random too. I wish Lawfully reported error bars on their predicted values so people don't misunderstand it. The error bars are very big.