David, I am highly concerned about fairly new and poorly understood zkproof systems vs transparent blockchains for long term storage. Monero, Grin, Zcash; have

David, I am highly concerned about fairly new and poorly understood zkproof systems vs transparent blockchains for long term storage. Monero, Grin, Zcash; have all had their issues. What would be required in your mind for you to trust Mina to accurately and retrievably store your life savings?