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Why do nodes have a maximum peer count, in other words what could go wrong if each node is connected to all the nodes of the network?

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Holding the state of a peer and handling its requests consumes resources. Mainly RAM, bandwidth and CPU. Each additional peer has a fixed cost for a node but a decreasing utility.

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  • You could additionally mention that due to the limit on listening nodes there is also a limited amount of slots for other nodes to make inbound connections in the first place.
    – Murch
    Commented Nov 27, 2023 at 15:28
  • I initially started writing something along these lines but figured it didn't answer the question which was rather about why is there a limit at all for those listening nodes, if i'm understanding correctly. But i don't mind adding it. Commented Nov 27, 2023 at 15:32

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