I imagine sybil attacks are prevented at scale. The issue with Tor is that afaik it's still small enough that a nation state can buy enough relays / exit nodes

I imagine sybil attacks are prevented at scale. The issue with Tor is that afaik it's still small enough that a nation state can buy enough relays / exit nodes to make network correlation feasible. If there were financial incentive to spin up relays, it could be way harder for any one group to control a significant portion. For some numbers, there are currently around 7000 Tor relays [1]. I couldn't find a conclusive source for the number of bitcoin miners but one source says 300,000 [2] and another says 13,000 [3]... [1]: https://metrics.torproject.org/networksize.html https://metrics.torproject.org/networksize.html [2]: https://www.btcwires.com/round-the-block/how-many-bitcoin-miners-are-there/ https://www.btcwires.com/round-the-block/how-many-bitcoin-mi... [3]: https://bitnodes.io/ https://bitnodes.io/