And before the thread gets locked, there is of course a problem with the word "invention" as used, for example, with patents.
To a sufficiently advanced mind, one familiar with all the physical laws of the world, every conceivable device is "obvious". Any such device is simply a solution to a problem, and when faced with such a problem, it is pretty obvious how to make something that solves it. Therefore, if there are many people simultaneously encountering a given need or problem, they will all be likely to solve it in a similar way.
The whole legal theory of patents is that most people are not very intelligent, and so when a "smart" person devises a gadget that does something useful, it looks to everyone else like a miracle, and worthy of special regard.
Today, patent law operates like the system of mining claims. Whoever first sticks a stake in the ground and makes a claim, their claim is given legal protection. Which leads to the ludicrous situation today where patent filers make claims about anything and everything, just so they can prevent other people claiming the same thing.