It's not realistic to expect this. If everything could be simplified to this degree, you would never need experts.
It is also dangerous to assume this, because that is exactly how we reached the "my uninformed opinion is as valid as your years of experience" aspect of the current political climate. NO, things are NOT as simple as you think they are just because you saw it in the space of a tweet!
On the other hand, it is important to recognize expertise over bullshit. The easiest defense is having several experts, since at a certain point they would need to do an awful lot of collusion to just make things up between them (i.e. if enough of them agree then what they say is apparently correct).
Nobody's saying that "explaining" is the same as "teaching". Nobody's saying that "basic understanding" is the same as "mastery".
This is just to get people started, it's not a substitute for years of hard work and study. Feynman never claimed this and I think this is missing the point entirely. Unless you have a complete model of how the system works you can't come up with suitable analogies to gently ease in new people to get started.
The best we can say is that if there is a strong consensus among experts that it is, to the best of our current knowledge, correct.
It's at least more correct than someone with zero training in that field. Dissenting opinions among experts should also be considered, by such experts, and the points at which they disagree with the logic or knowledge carefully examined by all.
It is also dangerous to assume this, because that is exactly how we reached the "my uninformed opinion is as valid as your years of experience" aspect of the current political climate. NO, things are NOT as simple as you think they are just because you saw it in the space of a tweet!
On the other hand, it is important to recognize expertise over bullshit. The easiest defense is having several experts, since at a certain point they would need to do an awful lot of collusion to just make things up between them (i.e. if enough of them agree then what they say is apparently correct).