How Do Engineers Design Complex Machines and Products?

I’m sorry for the disruption and for bothering with this question.
How do most engineers design complex machines and products? I have seen many amazing designs shared on this platform, and I feel like I can't create something like that. Does this mean I’m not talented enough to be an engineer in the future?
2 Answers

As crazy as it might sound, once you know enough of the constraints and requirements of "whatever it is", e.g. these holes must line up, this can never touch that, we're going to mold this part, etc. etc...the parts and systems oftentimes seem to design themselves. It's weird, but I can't tell you how many times it's felt that way to me.
Kind of like the artist who said the sculpture is already there, I just remove the bits that don't belong, but with math and geometry and physics to help guide us when doing the engineering version of sculpting.

Engineers design complex machines and products by following a structured process: identifying requirements, researching solutions, creating CAD models, and testing prototypes. They use tools like finite element analysis (FEA) and simulation software to optimize performance. Collaboration across disciplines ensures reliability and innovation. Are you exploring mechanical design, and product engineering, or looking into how engineering teams manage large-scale product development from concept to final production?