I am reasonably sure that a single pebble, taken from a beach of our own Earth, does not specify the continents and countries, politics and people of this Earth.
A single pebble contains a lot of atoms an those atoms interact via gravitational forces with the world around them. Heisenberg’s uncertainty principle might prevent you from knowing everything about earth from a single pebble but otherwise you just would have to measure the movement of the atoms in the pebble closely enough.
Many different things can cause similar movements, you could detect something pulling those atoms in 1 direction, and something else pushing them back at the edge of the pebble which is closest to earths center of gravity. But you would not know what is causing that pull, only from where it is coming and how strong it is.
A single pebble contains a lot of atoms an those atoms interact via gravitational forces with the world around them. Heisenberg’s uncertainty principle might prevent you from knowing everything about earth from a single pebble but otherwise you just would have to measure the movement of the atoms in the pebble closely enough.
Many different things can cause similar movements, you could detect something pulling those atoms in 1 direction, and something else pushing them back at the edge of the pebble which is closest to earths center of gravity. But you would not know what is causing that pull, only from where it is coming and how strong it is.