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Definitely, mine was just a simple question on the design, it is interesting to see how different people thinks ;-)

The work to keep everything in order, definitely, has to be done somewhere. You are doing it twice, once sending the messages actually in order, another in the TCP stack. Clearly the one on the TCP stack "comes from free" for anybody reasonable.

Like yours, also my mind is haunted by possible bugs, however in this cases I prefer to borrow from the Erlang philosophy and embrace possible failure. The way I model this problem is that the packets arrives usually in the same order, or one close enough, to the order in which they are send. It is rare that a single packet get lost, but if this happen I want to be able to reask for it and don't block the whole rendering.

I would have accept to receive messages slightly out of order and have a guarantee of something like the last 10/20 messages.

Would it require some reimplementation of the TCP stack? For sure! Would it be the common case? Definitely not! Would it make the architecture more resilient? I believe so but I may be wrong.

Now, to be clear, your work is amazing! I am really glad that you shared it and it I a pleasure to have this kind of technical conversation. Given your technical and time constraints I would have done just the same.

Just wondering if you have any thoughts on my counter points.

Happy Easter!

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