
He's not entirely wrong, either, despite later revelations that certain fundamental assumptions about Amestrian alchemy, including Equivalent Exchange as they know it, are false.

It's both the Life Energy of the universe and a power source for machines, which can convert it into Hard Light objects, and people can tap into the Ether in their bodies by using a technique called Ether Gear. EDENS ZERO has Ether, which the series typically prefers to call magic, an "unscientific" word for despite there being no firm science behind it.However, none if it is ever called "magic." These include generating massive amounts of electricity, using their blood as explosives, and draining people's life span. Darker than Black: Contractors are able to do very specific things with their powers.

Academy City classifies Touma as a very weak esper for the sake of Plausible Deniability (which even he seems to be fooled by), but he's actually a Muggle with some kind of Cosmic Keystone inside his arm. Also played with by protagonist Touma's "Imagine Breaker" power.And while most esper powers are based on a clear scientific concept, such as control over electricity or friction, the Gemstones (espers who unlocked their powers at a young age without training) often have far more abstract powers or ones that seem to do multiple unrelated things.

The lines between esper abilities and magic are further broken down when it turns out that that the training programme for unlocking esper potential was invented by a mage, based on a ritual intended to give the user traits of angels (and that the so-far theoretical Level 6 espers are essentially Deities of Human Origin).And espers only get one power, while mages can learn multiple (though most don't use more than a few). Really, the only difference between the mages and the espers is that the mages use lots of crutches in the form of magic circles and magic items, while the espers develop Super Intelligence to control their powers instead. In A Certain Magical Index (and the spinoff, A Certain Scientific Railgun), esper powers are basically just Inherent Gift magic under a different name.
