We have discovered nothing. This is all pure speculation.
Not so. Pale shadows, perhaps, but they are there.
You have discovered nothing; the extrasolar planets that have been found are indeed there, and are not speculation.
An Angstrom is .1 nanometer, which is approximately 1/250 millionth of an inch; Intel’s current path widths in their currently most dense chips are 32 nm; they collaborated with Micron to make NAND memory with paths 25 nm wide. Atoms are usually one to three Angstroms wide, so a 25 nm path is 83 to 250 atoms wide. But that’s just speculation too.