Yes, we can...
Let me clear: I'm updating the blog now because Plaid Cymru are clear that we have misunderstood their Build for Wales infrastructure fund proposal and that Labour, the Conservatives and Liberal Democrats haven't understood it at all.
A party spokesman tells us, "Our proposed structure is not a 'near identical' scheme to that mentioned for Scotland which assumes public sector borrowing, but rather a new type of company which is not only able to raise funds in private market but is an alternative to PFI.
"The Scottish proposal asked permission for the public sector to borrow. Our proposal has been created to specifically answer this problem - creating a funding vehicle set up as a private company with special characteristics allowing it to borrow in the market. Dialogue around this proposal is currently ongoing with the treasury."
So Plaid say their proposal might sound similar to a scheme outlined in Scotland, where the Scottish government would have been able to issue bonds to pay for large infrastructure projects. They sound similar but are, in fact, not. The fundamental difference is that under Plaid's scheme, the borrowing would be done by an arm's length body, not the Assembly Government.
Party sources repeatedly refer to discussions with the Treasury and that while they rejected the Scottish proposal, discussions around Plaid's plan have gone "a pretty long way down the line".
All these discussions, we're told, are centred on whether the borrowing would be "on or off balance sheet".
Labour still dismiss the whole scheme as unworkable. Who, they ask, would buy bonds from a Fund without assets, and without implicit or explicit underwriting from the UK Treasury? Without this, they argue, borrowing rates simply couldn't be affordable - and the Treasury have already said no.
Plaid's plan, says Labour, is a deal "that sounds too good to be true"
Plaid are insistent that it is not.
One question that's being whispered in my ear over and over again today is - who exactly is speaking to the Treasury and on whose behalf?
What I understand from well placed sources is that the discussions referred to by Plaid Cymru have been taking place between officials in the Welsh Assembly Government and officials in the Treasury.
This is significant on a number of levels.
Firstly, this is not a policy that's ever been floated by the current Welsh Assembly Government.
Secondly, it's been comprehensively rubbished by Labour, publicly and privately, at a senior level.
Thirdly, it's a key plank of Plaid Cymru's election manifesto - with Treasury buy-in the key element in its credibility.
Fourthly, are the Conservatives and Liberal Democrats being put at a disadvantage if Assembly Government officials are discussing election policy pledges with Whitehall on behalf of at least one of the governing parties here? There are a lot more than raised eyebrows at this, I can tell you.
Food for thought.