If you have a friend who still questions Jayson Tatum’s greatness, the first logical course of action is to dismiss him as a friend because he obviously can’t be trusted.

If that doesn’t work, remind them that he’s an NBA champion, a two-time Olympian, and a five-time All-Star — and yes, he’s still only 19 (sorry, 26).

If they’re still not convinced, I recommend putting them in front of the TV and showing the Celtics-Timberwolves game on Thursday night – or this highlight if they have two minutes, not two hours. Tatum has had more jaw-dropping performances, he’s scored more points and he’s certainly taken over with more vigor.

But this game in particular – in which he led the Celtics to a 118-115 victory with 33 points, 9 assists, 8 rebounds and 3 steals – highlighted what makes him unique.

“Obviously he made some great shots,” Celtics coach Joe Mazzulla told reporters. “But I just thought his intentionality on offense was really good.”

For me, Tatum’s greatest skill is his ability to give the game everything it needs. That’s what separates the great players from the good ones. Some people can get you 33 points. Others can dish out nine assists. Many can grab eight rebounds. But doing all three at once is pretty impressive.

When the Celtics needed a Big 3, Tatum was there to provide it. When they needed timely help, he delivered. When they needed a clutch rebound, he gobbled it up. With Jaylen Brown and Kristaps Porzingis out, there’s even more weight on his shoulders and he continues to serve as a stabilizing constant in an ever-changing lineup.

He also helped limit Anthony Edwards to 15 points on 5 of 16 shooting (2 of 9 from 3). Mazzulla said Tatum asked to guard Edwards before the tip-off and he did an excellent job forcing him into the law and making him uncomfortable.

“Just another opportunity to get involved in the game and be focused and locked in,” Tatum told reporters, referring to guarding Edwards.

Mazzulla praised him for setting the tone.

“I thought he accepted the challenge,” Mazzulla said. “He was great tonight.”

His ability to guard 1-5 shouldn’t be taken for granted, but it often is.

Tatum leads the Celtics in points per game, rebounds per game, assists per game and 3 points this season. This is a team with Brown, Porzingis, Jrue Holiday, Derrick White, Al Horford, Payton Pritchard and Sam Hauser. He always stands out in a star-studded squad.

Here are a few plays and reflections that shed light on his dazzling performance:

Big 3-way win over Rudy Gobert.

Here’s the rating. The Celtics forced the Timberwolves into substitutions more often than they would have liked, and Tatum was often the beneficiary. Rudy Gobert hardly has a chance.

In the sequence where he got a technician (it probably shouldn’t have been a technician, but it is what it is), he played through the contact and got to the end. Even though it was a foul and the whistle wasn’t blown, he still took the shot. A few years ago he probably wouldn’t have done that.

Yes, and he had multiple chances to put Minnesota away, but it happens. Without him they wouldn’t have been in this situation at all.

Sweet one-handed pass to Neemias Queta.

This is Tatum at his best. He dropped 16 points in the third quarter, so you have no choice but to respect the 3-ball. The Wolves doubled Tatum, and he responded quickly, handing the money one-handed to Neemias Queta for a flush.

This is another piece that may not have existed a few years ago. I’m sure the Warriors series still keeps him up at night even after winning a ring, and I’m sure he wouldn’t make the same mistakes today that he did back then. That’s the beauty of watching a superstar mature before your eyes.

He also had a deft pass to Al Horford, a well-timed lob to Luke Kornet and a dime over the shoulder to White. Oh, and he only had two turnovers.

Then there is the rebound.

Tatum is one of the most underrated rebounders in the league. Check out these statistics from Dick Lipe. Very impressive. He is there with all the big ones.

He makes a conscious effort to recover – not all superstars do that.

Plus the defense.

Not all superstars really enjoy playing defense. Tatum does. He is the epitome of a versatile player and the Celtics are very lucky to have him.

Nights like these remind you how far he has come. The scary thing is that he can still get better.