To be fair to this person, the theory portion would be correct, "if" it was a theory. It is not. It is the "Law" of gravity, in which the scientific community has given it. Theories still have to be proven and built upon to make it into said law. Most of the other stuff is well, odd to put it lightly.
It is not a "law". There are no "laws" in science, only in "popular science". Every hypothesis is just that, a hypothesis. A single or group of hypotheses can form a theory for a given phenomenon, usually after some time has passed and some experiments have been replicated that don't disprove the hypothesis. The scientific method is almost entirely about disproving, not proving a hypothesis. "Proof" only comes about after you (and others) have bashed a hypothesis in every conceivable way trying to disprove it, but even then, should a better experiment poke a hole in your proof/hypothesis, it weakens its veracity. It's a common misconception that scientific theories are "proven 100%". They aren't. Some are more certain than others (i.e. gravity, evolution, thermodynamics, etc), but no good scientist would ever claim 100% certainty.
To be fair to this person, the theory portion would be correct, "if" it was a theory. It is not. It is the "Law" of gravity, in which the scientific community has given it. Theories still have to be proven and built upon to make it into said law. Most of the other stuff is well, odd to put it lightly.
It is not a "law". There are no "laws" in science, only in "popular science". Every hypothesis is just that, a hypothesis. A single or group of hypotheses can form a theory for a given phenomenon, usually after some time has passed and some experiments have been replicated that don't disprove the hypothesis. The scientific method is almost entirely about disproving, not proving a hypothesis. "Proof" only comes about after you (and others) have bashed a hypothesis in every conceivable way trying to disprove it, but even then, should a better experiment poke a hole in your proof/hypothesis, it weakens its veracity. It's a common misconception that scientific theories are "proven 100%". They aren't. Some are more certain than others (i.e. gravity, evolution, thermodynamics, etc), but no good scientist would ever claim 100% certainty.