Meath legend Trevor Giles has questioned whether opposition players will actually believe they can beat Dublin in the future.
"You see, Irish males are funny," Giles began at the media launch of this weekend's All-Ireland Under 21 football final.
"They won't tell you exactly what they're thinking.
"They'll kind of tell you exactly what they want you to hear and if you ask how they're feeling, they'll say, 'I'm feeling good, I'm feeling confident, I'm this, I'm that'.
"You'd be wondering deep down how are they really feeling.
"You'd be kind of wondering now, any team going out against Dublin, do they really believe they can win it?
"I don't know."
Giles branded Jim Gavin's side "just a really, really good team at the moment," adding "I think certainly if you're going out playing them as an individual, you have to say, 'okay these are the best team around and maybe one of the best teams in a long time so let's see what I'm made of as a player and how I stack up against them.
"Can I survive against them and compete?'
"Or as a team, are you going to kind of stand back and look at them and admire them or are you going to get stuck in and show a little bit of disrespect, if you know what I mean and have a real go at it and say 'we're going to have a go here'.
"You know, there's ways of losing, there's a bad way of losing and there's a good way of losing.
"I think if you're going out against Dublin, if you're going to lose, you have to lose well, in the correct way that if you fall into the qualifiers then you have something to build on and you can win a few games in the qualifiers."
Tyrone's Seán Cavanagh, meanwhile, reckoned it was "scary how dominant they've been over the last three years."
"But you can do nothing else but sit back and credit Jim Gavin and what he's been able to do with that group of players and put together such a strong and powerful running team. "
Cavanagh added that there was "no doubt" they would be considered amongst football's great teams.
"The likes of Paul Flynn, Diarmuid Connolly are some of the best players I've played with and against," he added, "and last year they had average enough seasons but still Dublin whitewashed every team so you're thinking they can afford to have off days.
"But they're still grinding out serious results and that's a serious thing for a team to be able to say."