@vgr
If you have inventor conceits nothing can give you a deep inferiority complex like browsing Lego videos, especially of very spartan technic mechanism builds. The big builds just look like a lot of patient work, but random little assembly snippets show how seriously creative a lot of people are. The design language is way more expressive than you might think, and it takes only a few parts to get very clever results.
In other fields imagination and creativity are not always this starkly obvious and you can delude yourself you’re more talented than you think. Not in Lego. Most people will just create dull and uninspired sculptures and mechanisms.
The official builds are usually not very inventive compared to amateur ones, since they have the luxury of designing new parts if needed, and are usually going for visual appeal over inventive construction.