What does it mean to say that 2 things "interact"?

Question

i know in quantum electrodynamics that supposedly particles can send forces through force particles, but what does it mean to say something touches something else. For anything to interact on a fundamental level there is a special state of spatial relationship required, namely that the two particles must occupy essentially the same space for an instant to effect one another. What is it that makes this state special and turns the cogs of our ever evolving universe through interaction? and what is it about time that allows for a "conduit" through which change is given the right to take place? If we abandon all our presumptions (about space, time, and cause and effect) and try to boil our universe down to pure logic, will it ever work? or does the existence of reality itself, in whatever form, defy logic inherently?

Can anyone help me brainstorm about this problem of a universe which defies pure logic and seems to work, on its most fundamental levels, by what can only be called "magic"

Answer 1

act together or towards others or with others; "He should interact more with his colleagues" like they go together
and are like good together!!!!