On Earth, got one word, it's called "Technology Black Box".
This concept is to explain those high-tech products. Inside got many science and knowledge, but all hidden inside one "box". For the people outside, it's like the thing inside already locked. You don't need to open the box, still can use the function inside.
That's why Earth people can use computer without learning computer code, logic design, or even what is algorithm. Also no need to know electromagnetism or material science.
But in the world where Shen Zhou is, got one more thing called "spiritual energy", which is like another kind of physics stuff. So over there, the black box is even bigger than Earth one. Here, people can use many magical powers even they don't understand the truth of the universe. Those ancient cultivators who never study the natural law, still can use powers and spells. This also is because of the black box idea.
If compare to Earth technology, then for Shen Zhou's cultivation, the methods and spells are not just theory, they are like core technology.
Engineers, if want to make better technology, must study theory. Same thing, cultivator also need to open the black box, understand the theory inside their methods, only then can go further.
Like, a computer in hand of a hacker and in hand of a lazy guy, will give different effect. Same way, a spell used by someone who understand the deep meaning is not same like someone who just accidentally know how to use it through some shortcut.
This is also why that sect, which name is All-Laws Sect, always say "One method can create ten thousand methods". On Earth, mathematics is the foundation of science, and people call it the Queen of Science. In Shen Zhou, calculation science is also shortcut to find the path. No matter what method or spell, sure will got some mathematics inside. That's why their disciples can use any kind of spell.
Long time ago, there was one powerful immortal, people call him Lord Bai Ze. After he succeeded in cultivation, he carved three lines of words on the mountain where All-Laws Sect live:
"People born in this world, their senses are dirty; the noisy mortal world, all lies to your true self; if you want to find the Way, only math can help you."
This means: When people are born, they keep receiving all kinds of messy information. That information got the truth of the universe inside, but only small part, not full one. So these experiences actually trap people. The only way to cut this chain is use math, because math is abstract from the beginning.
If say it in another way, it means: "Your eyes will lie. Your ears will lie. Your experience will lie. Even your imagination can lie. But mathematics won't lie to you."
Because of this, Lord Bai Ze's words became the main rule of All-Laws Sect. And even many modern cultivators, also agree that math deserves this kind of respect.
This is also where Wang Qi see his new hope to escape from his trouble.
On Earth, many math things are connected to evolution theory. Wang Qi knows two: Evolution Algorithm, and Mutation Model. The first is a method that use evolution idea to find best answer. The second one is a model that describe how creatures change and how nature select the better one.
And because All-Laws Sect already prove this: just understand the math behind a spell, already can use the spell. So that means...
Wang Qi realize. He can skip the evolution theory part, which he not really expert, and bring the problem into math field that he's good at!
So, even if his main method is that one about evolution, he can use Evolution Algorithm and Mutation Model to simulate and work with it. But his real study direction, still is the Path of Uncertainty — quantum physics!
Solving this long-time headache, his heart now full of happiness.
"Wah, I so happy now I don't even know what face I should put. Maybe I just smile, smile, smile? But smile where got enough? Not enough at all lah!"
After this drama inside his head, Wang Qi's face still got no expression. He ask calmly: "Brother Su. If cultivator find a big truth of the universe, normally how they celebrate? Got what tradition?"
Su Junyu think a bit, then say: "In our sect, actually got one tradition follow after the Geometry Demon Lord. That guy, one day when taking bath, suddenly understand the Dao, then forget wear clothes, straight fly up to the sky and shout 'I know already!' So after that, his students also copy him— Eh! What you doing?"
Wang Qi suddenly pull down his belt, hand already on his robe: "I follow the senior."
"Oi oi calm down! Yes, got this tradition, but very few really do it one!"
"I don't care lah, I need release this excitement!"
Su Junyu use one hand grab Wang Qi's belt, another hand hold his robe: "Wait first! Got many way to let out your feelings, not need like this!"
"My big sword already cannot hold back!"
"Where you got sword?!"
"Let go!"
"I cannot let go!"
The two of them fighting like this for a while. Su Junyu finally use a lot of strength to stop Wang Qi from really going streaking in the sky. He wipe his sweat, planning to teach Wang Qi some basic manners. But then, suddenly he feel one familiar energy near them. He quickly turn back.
Xiang Qi was standing there, frozen like statue. Even her sword fall to the ground she didn't notice. Her face was totally shocked, like her whole view of life just broke into pieces.
Su Junyu blur blur, but still wave hand at her politely. But then he realize… he's still holding Wang Qi's belt in his hand.
Wang Qi's clothes are still messy…
From outside view, look like both of them just now were… doing something…
And he even wave the belt to her, like showing off…
Using the strong thinking ability from his sect's method, Su Junyu immediately connect all the dots.
He scream: "It's not what you think!"
But as soon as he say that, he regret it. Because saying this just make it more suspicious.
Sure enough, Xiang Qi take a step back, looking even more shocked: "You… rich guy… no, Junyu… it's okay. I won't judge your… relationship…"
"You already judging lah!"
"No no no, this not your fault. Actually if think carefully, even that Machine Elder also came from your sect before he went to the Mechanism Sect… Now I know why people say 'All-Laws also want partners'."
Su Junyu cry out: "Don't say that about my sect!"
Xiang Qi turn to Wang Qi, her face very serious: "Little Qi, this is your own choice, I cannot say anything. As long as you're happy, it's okay."
"He just wanted to follow the old tradition…" Su Junyu try to explain.
"Machine Elder was a great man."
"Not that one! Not him! Why you don't listen to me one! Wang Qi, you say something lah!"
Wang Qi fix his clothes, stand straight, and say seriously to Xiang Qi: "Can you give us a chance to prove our orientation?"
"No no no, no need force yourself, and this kind of thing also hard to prove right?"
Wang Qi shake his head: "You can test it yourself if you want, Senior Sister."