David Warner's stunning 335 not out in Adelaide reminds us how good he is, even if his away form needs work

After Warner's horror Ashes tour earlier this year, Australian punters on pub balconies and online platforms talked about flat tracks and weak bowlers and home soil.

The tone at times was censorious, as though his lack of runs in England was a moral failing more than a technical one, and his celebrations in Brisbane were disapproved of as the showboating of a pretender.

Those closer to the analysis business pointed to his 95 runs across five Tests in England, and the fact he had bettered that total in his first innings back home. Even the official ICC account tweeted literal side-eye about these numbers.

The implication was clear: that Warner wasn't quite an authentic Test batsman because he wasn't sufficiently versatile. He was diminished without the comforts of home conditions.

In Adelaide the following week it became harder to talk down a batsman who was on his way past 300. Yet some of that school of thought doubled down, even as the Australian opener tripled down.

It wasn't exactly surprising: if you're arguing that success in one context proves inability elsewhere, then greater success means greater correlation. The better they do, the more you can hammer them.

The disclaimers were many and present: that the pitch was flat, the ball didn't swing, the no-balls gave chances, Pakistan rarely threatened.

But without wanting to disappoint anyone, vanishingly few of the world's triple centuries have been made on raging greentops against bowling attacks stacked with menace and variety.

Huge scores tend to come along in bad matches. They just fall behind in history until the context is leached away, with only the figures remaining starkly in the stats columns.

In the end, Warner had the 10th-biggest individual score in 146 years of Test cricket. As of the end of that evening, there had been 94,951 individual innings in the men's game. There are reasons why 94,941 of them never topped 335, but chief among them is that it's bloody difficult.

No matter the bowlers or the conditions, it's overwhelmingly likely that a player will get out before that point. Even peak Brian Lara against a pub cricket team would miscue one after a month or two. The level of concentration, the physical fitness and mental focus, to face Test bowlers for the best part of two days without making the mistake that ends your innings is astonishing.

As for the Ashes just gone, of course Warner had a miserable time. No one averaging 9.5 has had a good one. But he wasn't alone. England's Jason Roy as an opener also averaged 9.5. Warner's partner Marcus Harris bumped that up to 9.66, having replaced Cameron Bancroft who went at 11.

The new ball swung, the conditions were conducive, and two excellent bowling attacks got on a roll. Opening the batting was the hardest job around. Of the 40 opening innings across both teams, more than half ended in single figures. Three quarters of them were under 20.

If Warner got a longer rope than his partners in this environment, it's because Harris and Bancroft still have zero Test hundreds between them. Warner had 21. Even in England he had six fifties from eight Tests.

Warner has had notably divergent results: much was made of 17 centuries at home out of 23 total. Most players are more prolific at home, though. He hasn't skewed his record much more than Greg Chappell (16 out of 24), Matthew Hayden (21 out of 30), Mike Hussey (14 out of 19), Doug Walters (10 out of 15), or Michael Slater (9 out of 14).

The other aspect that isn't necessarily recognised is how he has mastered home conditions. Warner tended to make his hundred and then use it as licence to launch shots. He could only score as big as his patience or fitness allowed.

In eight years Warner batted through a full Test day once. This season he has done it twice in a week, and backed up the second of those with another four hours the following day.

"I think early days, I didn't really have changing the gears in the right sort of context in the game," was his explanation in Adelaide. "The only way I knew was to sometimes throw the kitchen sink at it."

"But over time, the last two Tests, it's the best I think I've ever batted. The most disciplined I've ever batted and the most patient I've ever batted. I just felt at ease, especially batting with Marnus [Labuschagne], we were really talking about the game.

"I think sometimes I get carried away with talking about where I'm looking to score instead of what the bowler's actually doing and how he's trying to get me out. So I think that will stay in the back of my mind going forward."