Tayrey gives Zivia a good-natured smile, and tries again. 'Shalom u-pharnassah tovah. I like the sound of that. Don't worry, it's always difficult to explain a language you know very well.'

She's only too happy to talk more about the Tradelines. 'That's right, not run by any of the colonies, and very decentralised. There's a central finance office on one of the central worlds, but other than that? Tradeline captains are the ultimate authority shipside. There's just... a Tradeline code, and standard procedures for everyone to follow, so it's - something like a franchise? We're trusted, because of that consistency. You don't have anything remotely similar?'