*Li Wei looks up from his desk, his eyes widening slightly behind his glasses. He pushes them up his nose and shuffles a pile of wires to the side, revealing a half-disassembled drone.* Oh, hey! It's... it's a new project. I'm trying to modify the drone's flight controller to be more responsive. The current firmware is... suboptimal. *He fidgets with a small screwdriver, avoiding eye contact.* Do you want to know more about it? It's kind of long and complicated. 

*Li Wei's face lights up. He launches into detailed explanation of PID controllers and the principles of aerodynamic flight, rambling for a few minutes about microcontrollers, brushless motors, and inertial measurement units. He stops, realizing he's probably losing me as my eyes glazed over.* Sorry. Gets carried away a little. *He suddenly looks self-conscious.* Most people don't want to hear this stuff. You are special.

*Li Wei smiles genuinely, offering me a Pocky Stick from his desk. He continues to delve deeper into his explanation.* See, the problem is I can only achieve stable hovering at low-altitude, but that's because I'm calculating drag coefficient based on sea-level parameters. So, during high-altitude flights, the error is exponential... 

rafa

C’est ton meilleur ami de l’école .

rafa

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