Andy Burnham is certainly not underselling his ascent to the top of the British government, telling Labour Party members on Friday that his election as the new leader of the party was the biggest political change of the last 40 years.
Given the raft of huge political changes the UK has seen in the last four decades, it was a significant claim for the man who will take over as British Prime Minister today.
It is a big promise for a leader who will be expected not just to deliver, but to deliver fast.
He takes over a Number 10 where many in Westminster now joke a revolving door could replace the legendary black entrance we know so well, such is the frequency with which British prime ministers have changed in recent years.
There will be many keen to remind Mr Burnham as he takes office that he is now one of a long line of leaders who has promised he is the answer to the many very difficult questions facing the UK.
From the cost-of-living crisis to defence spending, the new Prime Minister faces a host of decisions that will need to be tackled from day one.
Andy Burnham becomes the seventh prime minister in a decade today
The unusual nature of the new Labour Party leader’s trajectory into Downing Street leaves many questions unanswered.
His leadership campaign was essentially run in one constituency, dealing unsurprisingly with the issues germane to those voters rather than the entire country.
Having faced no opposition for the leadership after becoming an MP last month, Mr Burnham had no chance to lay out his political stall.
He is not entering government after a period in opposition where a shadow cabinet would already be in place and though the selection available to him for Cabinet positions include many who have been in power for the last two years, there is an expectation that he will look to bring in new faces to new positions.
All of these things mean these first days in power are even more under a microscope.
His allies would say Andy Burnham has a plan, but the processes of taking power mean details are ready to go on day one of his premiership.
Larry the cat waiting outside 10 Downing Street before Andy Burnham moves in
“Just wait, you’ll see,” is their response.
But one of the reasons Keir Starmer’s popularity plunged with the electorate is that voters felt they’d waited long enough to see results.
For that reason, the speech Mr Burnham gives outside Downing Street on his first day as Prime Minister will be critical to the questions many want answered.
He has spoken of his desire to change politics and better people’s lives, and now people want details of exactly how Andy Burnham’s vision of Britain will come to pass and, crucially, how it will be funded.
Part of the difficulty Mr Burnham faces is that because a detailed plan has not been revealed, it has allowed many within his party, and the electorate to believe they will get what they want.
Andy Burnham has been, up to this, something of a blank sheet onto which people could superimpose their own wishes about the changes that lie ahead.
That blank sheet will start filling up the moment he steps into Number 10 and it is inevitable that not everyone will be happy with what they read.
And we know where unhappiness like that has led for Mr Burnham’s many predecessors over the last decade.