"Bip300 places x amount of bitcoin aside in a trustless bank, that can be taken from, if you want to leave the side chain project. Like using a house as a security against a credit card. It puts skin in the game where altcoins and..." -This sounds like altcoin stuff. Not the hardest money ever created. You mentioned: banks, credit cards and houses to justify wanting Bitcoin to leave the main chain to "put skin" in the game for alt coins. No thanks. Sidechains do this fine. Zooming coins in and out opens attack surface for unseeable attacks just like NO ONE saw Taproot leading to Ordinals. -And Ordinals are, essentially, alt coin fluff/garbage. So no thanks to open up attack portals. "Things you might want to add are a monero like simple privacy experience, or zcash like features. There is even an EthSide on Dc so their version smart contracts, if you want. All backed by btc." -No. You misunderstand Bitcoin. It's the hardest money ever created. Not a shitcoin. If you want something else, go use it. You're trying to make Bitcoin a Swiss army knife. Keep that stuff away from Bitcoin. It soils the name. "if there are security holes or threats to bitcoin, technical arguments should be made on the open source proposal." -Any opening of attack surfaces is just that. Potential for unseen and uncalculable threats. Your reasoning that DC makes these able to be foreseen is wrong IMO. It doesn't. It just opens the surface. "DC has been around a longtime and these arguments have been answered for years already. All that's left so far is FUD." -Disagree. I haven't been convinced of it and it's not FUD. It's wanting to preserve the purest form of the idea of a digital P2P currency that is the hardest money ever created. "Big players stand to lose market share if BIP 300 is adopted. Names like blockstream and liquid (because its the same thing but open to you and not just big companies)." -Anyone can propose and run a sidechain tbh. "The project is open to real critisism, technical or game theoretic. But they must come from people who actualy understand DC first. Most people at this stage in the debate are dismissing it right away." -Nah. I don't buy that gatekeeping. People are allowed to want the purest form of money ever and have it as it is. They're justified to want it to be whoever they want. Just like you are justified to want Bitcoin to be intertwined with shitcoins. It's a disagreement of purpose based on opening unknown attack vectors, and purpose of the hardest money ever. Risks and functions outweigh the use IMO at this point. You're free to fork the project and make drivechain? Maybe that's an avenue you guys can follow...?