Re: Block lattice

Rewriting history of an account can only be done by the account owner themself, representatives can't do this.

So, I send 100 BTC to you, wait for you to sign it to receive it. Then I purchase historical stake, and produce a historical fork where I send the same funds to another account I control, which signs it, then I use my historical voting power to vote on my fork, and viola?

How does this convince the network to evict the original block?. From their perspective your historical stake is currently worth 0.

Since every account is a partition, I can present a fork where the historical stake has been sent to an account which I control before it was originally transferred somewhere else. Then I sign the fork with that same stake.

You can definitely make your local node do that though the security comes from the fact that you can't make the network accept the partition you created unless you own 50% of the market cap from their perspective, not the perspective of your local node.

If you tried to spend from a double spend you forced your local node in to, everyone else sees it as invalid.