> The bit is supposed to flip constantly > a middlebox won't be able to just drop a packet You do know that someone somewhere is going to make a middlebox tha

> The bit is supposed to flip constantly > a middlebox won't be able to just drop a packet You do know that someone somewhere is going to make a middlebox that just drops a packet unless that bit flipped in the precise sequence that the middlebox developer believed was the correct one, right? Then someone proposes an enhancement to QUIC which happens to change the sequence of the flips (perhaps some multipath thing, or an enhancement in the way it treats reordered packets), and it breaks...