Suddenly, Supers!

[Kromm]

It's important to define how "magical" this cosmic energy is, too. If it actively defies analysis – that is, if the energy not only flies in the face of existing science but also alters its base nature unpredictably, despite producing consistent effects, and exists in a "the scientific method does not work" bubble – then you won't see tech based on it and you will make many people nervous. That kind of thing is likely to stir up both scientists (who cannot pin it down beyond "It appears to be totally random and all results are irreproducible.") and the faithful ("It appears to be conscious and one step ahead of us . . . is it God or is it Satan?"). At that point you'll see quite a few powerful authorities that are accustomed to relying on rational thought for their military and intelligence edge grow very worried about their way of life, and quite a few ordinary people reverting to superstition.

The repercussions of this will depend on the nature of the powers. Someone who can resist bullets or come back from the dead is one thing; someone who can control minds is another. Even if the latter kind of person is lily-white in motivation, the mere existence of such gifts beyond the reach of science to understand, block, or duplicate will generate serious paranoia and xenophobia. Similarly, however "good" you might be, if your power causes everyone around you to strip down and participate in an orgy, I can promise you that religious and superstitious people will react poorly not just to you but to all powers: "They come from the Devil!"