@georgia We. Have. Magic.
>magic: The application of rituals or actions, especially those based on occult knowledge, to subdue or manipulate natural or supernatural beings and forces in order to have some benefit from them
I am typing this on a slab of glass that glows, buzzes, sings, and sees because we taught a sand golem how to think. A collective of thousands of mages, warlocks, witches, and all sorts of sorcerers contributed to the tomes upon tomes of knowledge and intricate spells that keep this pocket golem alive. I use it to write minor enchantments of my own.
If you think fantasy magic would look any different from what we have discovered and invented today, you are ignoring human nature. The same structures and processes you see with our technology are the exact same that would have developed with bona fide fantasy magic. Microsoft and Apple would exist, and they would build magic mirrors for businesses, and little nice-looking enchanted slabs for rich people. They would curse you if you tried to discover their workings, as that's Microsoft or Apple's intellectual property. Google would exist, and it would offer you a free crystal ball that shows you ads half of the time, all while Google's own golems looked back through it to record what you like.
@chj0 would be summoning deprecated types of imps just to try and get them to do some weird trick. I would have studied the creation and maintenance of the magical channels that connect our various charms and trinkets. Opal would constantly be mad at how clunky the existing spells and rituals are, and vowing to write her own from scratch. Textbooks and papers would be written to fill the asinine magical theory circlejerk that modern math and science have become, and academic publishers would keep them locked up just like they do now. Most people would still be ignorant of the inner workings of the tools they use. A butcher doesn't care if he rings up your pound of ham on a magic record book or a cash register, so long as he can see how much he sold, and he doesn't need to figure out the taxes in his head.
You flip a light switch. The light comes on. There is no functional difference between some ethereal force powering it, and electricity.