Depending on your point of view, Jeremy Hunt's proposed reform of financial regulations represents a potentially significant boost to the competitiveness of the UK's financial services sector or a potentially dangerous watering-down of rules put in place to prevent a re-run of the financial crisis.
The truth, as ever, is that it is probably somewhere in between.
The first thing to say is that it is absolutely vital for the sector to remain competitive. Financial services is something the UK does well - it is one of the country's great strengths.
As the Treasury pointed out this morning, it employs some 2.3 million people - the majority outside London - and the sector generates 13% of the UK's overall tax revenues, enough to pay for the police service and all of the country's state schools.
And there is little disputing that the UK's competitive edge has been blunted during the last decade.
Part of that, though, is not due to post-crisis regulations but because of Brexit. Some activities that were once carried out in the Square Mile, Canary Wharf and elsewhere in the UK are now carried out in other parts of continental Europe instead.
That has hurt the City. Amsterdam, for example, has overtaken London as Europe's biggest centre in terms of volumes of shares traded.
The fund management industry is also likely to welcome a divergence away from EU rules on how VAT is applied to the services it provides. This could see lighter taxation of asset management services in the UK than in the EU and would certainly make the sector more competitive.
There will also be widespread interest in a proposed consultation over whether the Financial Conduct Authority should be given regulatory oversight of bringing environmental, social and governance ratings providers. This is an area of investment of growing importance and yet the way ESG funds are rated is, at present, pretty incoherent.
Bringing the activity into the FCA's purview could, potentially, give the UK leadership in a very important and increasingly lucrative activity.
So far, so good.
More contentious are plans to water down 'ring fencing' regulations put in place after the financial crisis.
These required banks with retail deposits of more than £25bn to ring fence them from their supposedly riskier investment banking operations - dubbed by the government of the day as so-called 'casino banking' operations.
The rules were seen at the time by many in the industry as being somewhat misguided on the basis that many of the UK lenders brought down by the financial crisis - HBOS, Northern Rock, Bradford & Bingley and Alliance & Leicester - had barely any investment banking operations.
Implementing them has been hugely expensive and lenders have argued that the rules risked "ossifying" the sector.
There is no doubt that, at the margins, they have also blunted consumer choice. Goldman Sachs, for example, famously had to close its highly successful savings business, Marcus, to new customers after it attracted deposits close to £25bn. So lifting the level at which retail deposits must be ring-fenced to £35billion will be welcomed in that quarter.
Challenger banks such as Santander UK, Virgin Money and TSB, all of which have little investment banking activities, are among those lenders seen as benefiting.
Yet the move will attract criticism from those who argue the rules were put in place for a reason and that watering them down will risk another crisis.
They include Sir Paul Tucker, former deputy governor of the Bank of England, who told the Financial Times earlier this year: "Ringfencing helps protect citizens from banking Armageddon."
It is also worth noting that watering down the ring fencing rules does not appear something that the banks themselves has been calling for particularly strongly. It is not, after all, as if they will be able to recoup the considerable sums they have already spent putting ringfences in place.
Equally contentious are proposals to give regulators such as the Financial Conduct Authority and the Bank of England's Prudential Regulation Authority (PRA) a secondary objective of ensuring the UK's financial services sector remains competitive alongside their primary objective of maintaining financial stability.
Sir John Vickers, who chaired the independent commission on banking that was set up after the financial crisis, wrote in the FT this week that the objective was either "pointless or dangerous".
Senior industry figures have also raised an eyebrow over the move. Sir Howard Davies, chairman of NatWest, said earlier this year that he was "not keen" on the idea.
More broadly, there may also be some scepticism over anything that sees the UK's financial regulation move away from that of the EU.
The City was largely opposed to Brexit and, after it happened, the one thing it wanted more than anything else was a retention of the so-called 'passport' - enabling firms based in the UK to do business in the rest of the EU without having to go to financial regulators in each individual member state.
That was not delivered and has created in a great deal more bureaucracy for City firms as well as causing the relocation of some jobs from the UK to continental Europe.
The next best thing for the City would be so-called 'equivalence' - which would mean the EU and the UK's financial regulations being broadly equivalent to the other side's. The EU already has an existing arrangement with many other countries, such as the United States and Canada, and such a set-up with the UK would make it much easier for firms based here to do business in the bloc.
But critics of Mr Hunt's reforms argue that further movement away from the EU's rules, as the chancellor envisages, would make it harder to secure the prize of an equivalence agreement.
Mr Hunt is almost certainly over-egging things when he likens these reforms to the 'Big Bang' changes made by Margaret Thatcher's government in 1986.
Big Bang was a genuine revolution in financial services that exposed the City to a blast of competition that, in short order, made the UK a global powerhouse in finance and which generated billions of pounds worth of wealth for the country.
The Edinburgh Reforms are likely to be far more marginal in their impact.
However, for those working in or running the financial services sector, the sentiment behind them will be welcomed.
Despite its importance in supporting millions of well-paid jobs, the sector has been more or less ignored by Conservative and Labour governments ever since the financial crisis.