Clair loves roses

Louis' Dominant cognitive function is Ne (Extraverted Intuition), followed by an Auxiliary Ti (Introverted Thinking), supported by a Tertiary Fe (Extraverted Feeling), and finished by an Inferior Si (Introverted Sensing).

Let's begin from the top. Ne, as a dominant function, acts as an idea-creating machine; It endlessly and relentlessly creates concepts, ideas, and connects all of them together. It takes the concepts from the outer world, creates connections, and makes up an idea. Ne doesn't really care what kind of idea it creates; They can go from a hundred percent rational to ten hundred percent insane. As long as this dot and that dot connect, Ne keeps on going.

It's probably Ne's fault that the idea of the footrace even took form – or any of the activities between Louis and his bandmates, really. Actually, take that a little further back, and you get to see why so many pranks took place during 1D days, all led by the one and only, Louis Tomlinson. Lemon is shoes? Insane, makes zero sense. Let's do it! Silly-string in the middle of a show? Absolutely ridiculous, execute! Screaming for God knows what reason? Bound to make you look a bit mad, tear those lungs apart!

(On a more positive note, this is probably where Louis' creativity comes from. And it shows in his lyric writing process. Ne just does not stop producing ideas.)

So, Ne has this brilliant idea of doing every race in the menu for the fun of it.

That's where Ti steps in.

Ti pulls the brakes on that a bit. Ti is probably the only thing that stops Louis from jumping off the stage and running into the crowd– well, almost. Ti is introverted, so it may be hard to see Louis as a logical person, but. Let me give you this example:

Ti is driven by something beyond like or dislike, love or hate, or the likes of that. Ti really doesn't care for morality upfront. If something sounds ridiculous to Ti, it will be called out instantly. Which is why Louis calls people out on their bullshit almost all the time. (And is why I think Louis is an ENTP and not an ENFP – if he was driven by Aux Fi, he wouldn't have opened a car door to call out a paparazzi for not doing his job while calling him a 'fucking loser'.) Because sometimes, what people say and do sounds and looks completely illogical to his inner logic.

Ti cares little for what other people think is logical. Ti is the reason why Louis is such a rule-breaker and had a knack for making Paul's life hell because none of those rules made sense to him, and so he dismissed them all. Being anything other than honest and straightforward makes little sense to him, thus he dismisses it, and calls people out without shame. He doesn't mean to be rude, which is why his harsher acts of utter sass are almost always followed by a semi-apology (courtesy of his Fe), he just has a personal set of logical rules and plays by them, not caring if they break the rules of the outer world.

His Ti entertains his Ne a lot, let's just say that.

So, Ne says footrace is a good idea. Ti thinks that it is safe, so it is a good idea. Ti also thinks that winning is very nice, sound logic, so there we have the competitive strike coming right up. Fe thinks that, since this is such a great idea, why not go and have fun with all these nice other people who will come with us, if I will it?

Ah yes, the Tommo charm. Ne's insane ideas, fool-proofed by Ti's watch, sound all nice and dandy, but only to a selected group of people who match his level of spontaneousness (like Zayn). So, what makes others tag along with his opinions, starting with his band agreeing to races and 1D boys basically rolling with whatever he did and said, and ending his fans being convinced that flipping him off is not actually rude?

Fe. Your answer is Fe.

Fe reads the room. Fe asserts what atmosphete people generate, what air they carry, and tries to shift it slightly around to match personal wishes. Fe is the one that cares what people think, instantaneously following up a harsh sass with a well-meant 'I'm joking!' to make sure no one is offended.

Fe also loves having people on board with itself. Fe is what gets others to agree with an idea, by making sure that they're comfortable with it. Louis is an extrovert, so he naturally enjoys being around other people, thrives on their attention and sharing moments with them. There's nothing better for fueling his energy than a group of people who agree to go with what he says.

So, Ne says footrace, Ti agrees, and Fe thinks that the more, the merrier. And then, Si.

... Si? Pssst... Where the heck is Si?

Ah yes, Si! Inferior, funny little Si. Inferior, funny, vastly ignored little Si by the very excited, very charged, very ruling Ne. So IGNORED, that this man mistook his broken ELBOW, for his WRIST.

sigh.

Si does two main things; One, it keeps track of inner body sensations. And two, it keeps track of past memories and experiences.

Si shows very loudly when Louis is calm, and is reviewing the past events. He talks very often about his past; from his experience in the band to his friendships to whatever nonsense his history teacher said when he was in school. Si (assisted by Ne) connects the past events and creates a picture of experiences and flashbacks, making sense of memories (Ti), and thus, leading to maturity.

But it's still inferior, it's subconscious. It works silently in the background, and, if overshadowed by Ne, it may go completely ignored.

So:

Ne comes up with insane ideas one after the other, making a long list,

Ti thinks them through, rules out the mad ones, keeps the ones it personally agrees with, regardless of what people say,

Fe knows what people say, but eventually gets them going with the ideas either way, all while working on getting them to like Louis as a person who deeply cares, despite the rough edges, which speeds up the process,

And Si is the tiny one who, in this chaos, gets confused and mistakes a broken elbow for a broken wrist, all the while being ignored by our dear, overexcited, competitive Louis as it tries to voice out past experiences that might've ended in similar disasters.

And it keeps being ignored as Louis forgets the sling and the poor, broken elbow completely after like three days.

This is why Louis, ENTP, thirty years old, originated from Donny itself, broke his elbow in an overexcited footrace just so he could win.

Thank you for coming to my TED Talk.