His speech about humans being the only life that simply expands until all resources are used up is not at all true. Most living things do this until or unless they have some kind of predator or competitor to keep them in check.
EFI doesn't see drives as bootable items. There's a single EFI partition that contains information on what can be booted. You need to add the appropriate info in your existing EFI partition that points to your SATA drive. You probably have to do this from your Mint setup.
First half is about housekeeping, history, funding, etc.
Second half is about future directions and it seems conservative. No huge changes planned, other than a new website. :) Discussed encouraging new developers, polling users for what to do next, maintaining quality.
Ended with some q&a.
9.2 will include XDG (.dotfiles) and Wayland support.
Our chief weapon is surprise.