Headers-first blockchain syncing test:
6 min to height 100,000
22 min to height 200,000
144 min to height 300,000
Fully synced in 248 min.
Testing @pwuille’s headers-first Bitcoin node w/parallel syncing from multiple peers. It not only works, it’s achieving bootstrap speeds.
The Tragedy of the Commons does not apply to p2p networks like Bittorrent or Bitcoin because using them does not deplete a finite resource.