I wouldn't mind answering that question, or at least contributing to the answer to that question. I don't have an opinion about whether it's a private sector or a public sector function to create that single digital identifier. I do know that, when I hear concepts that I'm going to use my bank or perhaps some other identifier, I have to understand that better. I do tend to trust that our public institutions maybe have more information that's more trusted, and might look at that. The scale, though, is immense.
I would start in the federal government at least looking at all of the different identifiers you have now and picking places where you could integrate and create a single authentication system that would allow high-fidelity identification for transactions that are happening within and around the government services. I would start there before I looked outside.
The scale is enormous, and I can't help but hear Andre's comments about how we have a good identifier physically and the problem only exists online. I would argue that our very weak tower of identifiers aggregating into a passport or a driver's licence document are not actually strong authentications. There's very little proof today that I am who I say I am. I am, but there's very little proof of that.