Jamison Gibson-Park says there's ample room for Ireland to get better in 2023.
Andy Farrell's side begin a huge year of Test rugby this Saturday, when they face Wales in the opening round of the Guinness Six Nations at the Principality Stadium in Cardiff.
And with Ireland top of the world rankings, they're favourites to pick up a first Six Nations title since 2018.
In 2022, they won a Triple Crown, a series win in New Zealand, as well as November internationals against South Africa and Australia.
But despite that, the Ireland scrum-half says they still aren't happy.
"I think there's plenty of room for growth both individually from the lads and collectively as a team," the New Zealand native said.
"That's why we're here and we're trying to get better. Hopefully we'll see the fruits of that on Saturday.
"You look ahead to the weekend and a match like that at the Principality and it's a pretty massive challenge, isn't it? Stuff like that probably excites me the most, those big challenges. In terms of growth, it's been pretty massive from the team and a few individuals as well."
The obvious improvement for Ireland, even before the World Cup in September, is to win silverware.
Gibson-Park is one of several members of the squad who weren't around when Ireland last won a Six Nations championship five years ago.
The Leinster scrum-half (above) has cemented his place as Ireland's first choice nine since making his debut in 2020, providing an incredible pace and energy to the Irish attack, with his quick-tap penalties in particular causing trouble for several teams during last year's championship.
And his ability to make quick decisions has been a vital part of Ireland's attack under Andy Farrell and Mike Catt, which he says is an element of his game he prides himself on.
"I'd like to think so, it's a pretty big focus area for any 9 or 10 to try and nail those big moments. I think we've come along in that regard but there's probably still room for growth as we saw in the autumn. Looking forward to it [v Wales].
"I'd love to say that time slows down but it's just a matter of taking in information. The best 10s will give you great information to try to make a decision, but you have to use your eyes and trust your eyes at the same time.
"It's just gathering information to try to make the best decision.
"We're the link between the forwards and the backs so trying to have our say with stuff that's going on up front but we've got to have our ears on as well, which is a big thing for the 9 and 10. We take everything in at once and try to make the best decision from everything you're getting so it's a continuous journey to try and get better."
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Gibson-Park is likely to be given the starting jersey for Saturday afternoon's opener in Cardiff, and will line up opposite the experienced Tomos Williams, after the Cardiff man was handed the start by Warren Gatland this week.
And he says he will have to be on high-alert to deal with Williams, who like himself, is a danger around the fringe of rucks and setpieces.
"I think he's unreal. Watching him over the years, he does the basics very well but at the same time, he's very unpredictable. You have to be on your game around the fringes and we're looking forward to the challenge.
"I's a very strong side. They're pretty stacked up right across the park when you look at the forwards and backline. We know Gatland's back and they're going to be pumped up in front of a sold-out crowd. It's going to be unbelievably difficult so we're going to have to be on our game," he added.
Follow every game of the Guinness Six Nations on RTÉ.ie/Sport and the RTÉ News app, or listen to live commentary on RTÉ Radio 1.
Watch live television coverage of Ireland v France (11 February), Italy v Ireland (25 February) and Scotland v Ireland (12 March) on RTÉ2 and RTÉ Player.