You are right, but my point is that general relativity gives us enough of a causal model for gravity that throwing up our hands and saying "It's a mystery" is unacceptable.
Teixobactin, I assume? Their new method of parallel testing promising proto-antibiotics is really neat, but given the ratio of successes to failures, I wouldn't hold out much hope for a second golden age.
> The law of gravity is one example, since nobody knows where gravity actually comes from.
Please stop this. While I agree with your overall point, we know what causes gravity (the uneven curvature of space due to the distribution of mass). You can find this out by googling "what causes gravity". It's not a mystery anymore.