There is an entire generation who have no idea about what life was like without the world forever at the touch of a fingertip.

Similarly, the way that Celtic are currently dominating the domestic landscape suggest an entire age group who will have little recollection of anything than turning up to watch a steady green and white procession towards whatever silverware is up for grabs.

Brendan Rodgers’ side have just three games remaining of a league campaign in which they have so far yet to taste defeat. It is not so much a question of invincibles as it is a question of who can stop the juggernaut.

Read more: Celtic dominate PFA awards with Brendan Rodgers, Scott Sinclair, Kieran Tierney and Moussa Dembele recognisedGlasgow Times: All smiles from Celtic manager Brendan Rodgers

There were changes rung on Saturday, with Scott Brown and Mikael Lustig, mainstays of the side, out, while Scott Sinclair started on the bench.

Young Tony Ralston came in for Lustig while Michael Johnston had the daunting task of walking into Sinclair’s shoes. Both can feel satisfied with what was a fine afternoon’s work.

News after the game that Johnston had signed a new three-year deal at Celtic added to the feelgood factor; with Chelsea having kept tabs on the 18-year-old, the Parkhead side were not slow to fend off any advances.

That is not to say that the Stamford Bridge club may not have a hotline to Peter Lawwell’s office this summer. The Premiership and the financial muscle that the can flex with ease may yet entice the likes of Moussa Dembele this summer, while Kieran Tierney has also come onto their radar.

Celtic’s strength in fending off interest in their star turns lies both on and off the park.

Under Rodgers there is a genuine feeling that Celtic are a team capable of making inroads into the areas where they want to go. The Hoops boss has brought an energy and an excitement to the way that the Parkhead side play – they are currently 9 goals off levelling Martin O’Neill’s 2003 league record of 105 goals in one seasons, while they are just six points away from levelling the record points tally of 103 – with players clearly revelling in the manner in which the team has been set up.

Rodgers has brought Callum McGregor, scorer of a fine fourth on Saturday after being on the park for minutes, Stuart Armstrong, Craig Gordon, Dedryck Boyata, Scott Brown and James Forrest this season to a different level.

It is surely in the clear improvement of players that one can judge both the quality of his coaching as well as the responsiveness of his players to his methods.

Read more: Celtic dominate PFA awards with Brendan Rodgers, Scott Sinclair, Kieran Tierney and Moussa Dembele recognised

In taking Celtic into the group stages of the Champions League this season, Rodgers also guaranteed a financial gain that ensures that one of the biggest strengths the club has going into a summer where players will be linked with other clubs is that they do not need to sell.

For the likes of Tierney who will be coveted elsewhere, they is little rush. There is a trust that Rodgers can nurture his burgeoning development while exposure to the Champions League again this year will only serve to enhance the reputation of the full-back – while also adding to his pricetag.

The fact that there is just one major curtain call remaining this season, yet Celtic are approaching routine league games with a ruthlessness and desire to quell any sense of finality, offers the real glimpse into the mentality that has been fostered at the club.

Saturday’s game got to the break with Celtic dominating without breaching St Johnstone’s goal. It would have been relatively easy to play the game out and settle for a stroll in the sun.

Instead, the Parkhead side upped the tempo and blew the visitors away with a second half showing that could have reaped five or six.

Patrick Roberts’ dancing feet this season have been significantly more disciplined this season with a greater maturity evident in the 20-year-old’s play. He netted twice but put on the kind of display that will have Aberdeen twitching.

The news that Roberts will play at Hampden later this month instead of heading to the under-20 World Cup will not have been what the Pittodrie side wanted to hear. Not on current form.

Boyata, too, netted another header on Saturday with the defender unrecognisable from the jittery, anxious defender of last season.

Read more: Celtic dominate PFA awards with Brendan Rodgers, Scott Sinclair, Kieran Tierney and Moussa Dembele recognised

Saturday was notable too for the manner in which Tom Rogic played for an hour. The Australian internationalist has spent the latter four months of the season injured but his touch and grace on the ball remain a subject of genuine interest.

If Rogic is the next player to benefit from the tutelage of Rodgers, it will be something to watch the trajectory of his performances.

In any case, the 4-1 win had Rodgers applauding the application of his players, with the two youngsters deserving of particular mention. Rodgers sent both at the full-time whistle to take a bow in front of the Hoops support, a nice gesture and one that would have been particularly momentous for the two debutants.

"With young players it's just about timing,” he said. “I've always given young players an opportunity.

"I want to ensure they go in with other good players at the right time and put them in against a team that's a test. I don't want them to be comfortable. I think that's important.

"Anthony was absolutely outstanding. He really impressed me as a 17-year-old and I took him away pre-season. I liked what I saw.

"Young Mikey came in to replace Scott Sinclair which is never easy, but I thought he did very well. He's a very exciting player and fast.

"He's still got a lot of growth in him but he's dynamic and when he becomes a bit better on final pass and adds goals he's going to be a big talent."