Consider gravity. My understanding is that ideas about gravity around the time of Bacon, Galileo, Kepler, and Newton changed the way people thought about motion. Prior to then it was obvious that objects fell to the ground, but the Aristotelian rationale for such motion was that (some) objects tend toward the centre of the earth. And observations would support this claim. Post-Aristotelian physics described the same phenomena, but for a different reason: massive objects attract each other. The stone moves toward the earth, and the earth moves toward the stone; but the earth imperceptibly because of its immense size. Same observation (as much as perceptible) but different explanation.

My diversion was to highlight that the differences between the two approaches did not require them to be rigorously defined. The mass-attraction concepts antedated the maths by a significant amount of time; Newton had to invent maths for his theory! But a philosophical discussion on the merits of objects tending to the centre of the earth versus objects attracting is still very possible.
Similarly, it is possible to discuss other topics in general before rigour is attained, including information.
Information is a non-material concept that contains instructions thru language.
I use the term instruction somewhat broadly including being informed, not just commanded. That is, meaning of some form exists.
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