If you want to test out a proposed white hat/red hat BIP to #Bitcoin  with the real intention of “upgrading” Bitcoin or making the OG chain a better protocol…

Then why not just hard fork and spin up your experiment/proposed changes kinda like Satoshi did to launch #Bitcoin ?

Then, if you get in enough reps and iterations to see how real world players play your new game…

Then maybe you can report back to the OG #Bitcoin chain and we can discuss a possible soft fork code change or something?

Why is that not the best testnet method?