Security mechanism, block inclusion, all relie on the probabilistic nature of transaction propagation in the decentralized network…

According to Satoshi in the case of 'fast transactions problem', if legitimate transaction reaches 80% of nodes & double-spend attempting to catch up reaches only 20% of nodes, let’s outcome that legitimate transaction has a significantly higher probability of being included in the next block due to its faster & wider propagation…

Explore the full RBF & avoid 0-conf!

https://bitcointalk.org/index.php?topic=423.20 nostr:note1usr99wxxmmp6nw74ghhlvr305csd5d4dfx93qca5tjfswjlprx0qrl5qk7