![](https://monero.town/pictrs/image/a5e4fa35-1fb9-41c5-a621-82531923d2fe.webp)
If you were to take old transactions and roll them over to new genesis transactions at the same address but without a need to validate a history, I think you could safely drop the history of those coins without any affect to the end users. Probably would need to have the new genesis transactions on the chain for a few hundred or thousand blocks before the history was dropped to prevent malicious actors from forcing history to be dropped early.
@Soy_Magnus @silverpill @monero @tusker
I also have copper, silver and gold. And lead, aluminum and steel. :02_shrug: