The whole point to most magic is that there *are* laws and reasons why things work, but there's no point in explaining every single quirk of the system because stories aren't tech manuals. Ask yourself if you would really, truly be interested in a character-driven story that stopped every other chapter to write a pages-long explanation of how finger wiggling works.
It would be like saying "Alice microwaves her coffee" and then breaking down every step of the process, including atomic models, conductivity of the wires, the emitter guns in the microwave, and how the light bulb works. All that was important is her coffee is now hot.
Magic is a means to an end (the end being the story), not some kind of technical manual. There's plenty that goes on in real life that we don't understand at all, but is still considered "science" despite that.
tl;dr for below: I don't want a technical manual on figer-wiggling, I don't want finger-wiggling full stop. I just don't want to read aything which resolves it's plot complications with lame figer-wiggling.You don't need to tell me how the microwave warmed her coffee, I know what a microwave can do. Or perhaps more importantly, I know what it
can't do. I know that she can't use the microwave to unlock that locked door, for example. If a character were to overcome some problem with a microwave in a clever way, I would see that as intelligence, not silly finger-waggling. For example, the protagonist uses the microwave's faraday cage to block a signal to a bomb detonator. That is interesting and fun because the protagonist overcame an obstacle using logic I can follow and understand. I could even be trying to devise a solution to that problem while following along with the story, and I can do that because the world is logically consistant. It's just not fun when the wizard pulls some spell out of his arse to solve the problem.
Magic needs some sort of logical system behind it, or otherwise it's not something smart, it's just a lazy tool the author can use to overcome plot complications. It's just not fun when the wizard comes along and unlocks a locked door (wait, when could magic unlock doors?), and then teleports everyone across a chasm (wut?). At that point, I just assume the wizard can just will their way out of any situation and lose interest.
If magic has some logical system behind it, one in which enables me to understand a characters capabilities and limitations, then I can possibly get behind it. I can possibly see the character as someone who is actually quite intelligent. Without that, IMO it becomes a boring and lame means to an end.
Maybe it's just me, but I like a novel that makes me go "ahhhh, thats clever!". Wiggling a finger to unlock a door doesn't make me do that.
Interestingly, this is something games generally do pretty alright with. The rules of magic are constrained by necessity (it is a game mechanic, so it has to have game rules), and thus become something of a tool that I can use to overcome problems with logically (which is fun), and the stories often reflect that when non-PC characters use it.
I would be totally interested in some sort of fantasy equivelant to hard-scifi. Magic can exist, but it has to play by the rules.
Tech was using the rules to create and work while magic was bending those rules
I personally don't like this explanation. What are these laws of the universe, and why are they so? Are they scientific laws? If a scientific law can be observed to be broken (or bent), then they need to be revisited and revised, because that would mean there is something wrong with those laws. Because of that, it seems tech here is operating under their own self-imposed rules, not any laws of the universe. Why can't tech bend these laws too? It seems like this explanation relies on the reader having a shoddy understanding of what scientific laws are, or that you just accept "universal laws" are some poetic-sounding thing that just works here.
And yeah, I don't like tech vs magic very much either. If magic is supposed to be some sort of scholarary thing, then they just seem like two different specializations. To me, it would be like chemestry and physics going to war with each other, just because they focus on two different areas (and influence each other anyway, because they are both part of the same universe). Why can't mages shoot fireballs with ballistia? Why can't tech use lightning-bolts to generate electricity?
The only explanation I can think of at the moment is these two factions oppose each other ideologically, which actually sounds quite interesting, but that would still mean that tech and magic are not inherently incompatable.