So lots of talk about Canada+++ at the moment, and it was always something Barnier said was a possibility in his several-years-old diagram.

I think it vastly better than no deal, but still a pretty bad deal. Northern Ireleand remains as problematic as ever, but let's imagine some solution is found. Canada+++ is a deal which puts the maximum administration costs on individual businesses, since they end up having to get certificates, making declarations and so forth. If their product uses third party components, they end up with all the responsibility of ensuring those components are to the relevant standards. It is quite easy to see the costs of this end up as O(n*n) rather than O(n) for n businesses. It will work, certainly, but not efficiently.

Because of the administration, the risk of delays and disruption at the ports remains almost as high as under a no-deal.

And because of the costs of this, the pressure to cheat the system and use unverified and possibly unsafe third party components is maximised.

So not a good deal for most, I think.