1) Not quite— The crystals as they appeared so far functioned more like batteries, but the problem is not any crystal will work. Only the ones already found in appliances have proven to hold dreamotion energy as a kind of charge, but it's unclear how or what kind. I can't remember if there have/are some IC player investigation into this so you may want to double check!
Elemental cores are different in that they only work for their element and serve as a kind of substitute whereas the crystals would be more like electrical type use (ie, where you'd imagine a battery or some kind of similar energy source would be found). So for example, a stove, a heater, or a fireplace. Instead of using real fire, fire cores can be used. Water cores can produce small amounts of water, air cores can produce wind, etc.
2) This is correct! The tech development was already heading in this kind of direction, so really everyone is just seeing the possibilities in real use. You could say the Verens dreamshift is giving the tech development a bump in progress since instead of just wildly guessing they now have potential blueprints.
I hope that makes sense if not I'll try to clarify.
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Elemental cores are different in that they only work for their element and serve as a kind of substitute whereas the crystals would be more like electrical type use (ie, where you'd imagine a battery or some kind of similar energy source would be found). So for example, a stove, a heater, or a fireplace. Instead of using real fire, fire cores can be used. Water cores can produce small amounts of water, air cores can produce wind, etc.
2) This is correct! The tech development was already heading in this kind of direction, so really everyone is just seeing the possibilities in real use. You could say the Verens dreamshift is giving the tech development a bump in progress since instead of just wildly guessing they now have potential blueprints.
I hope that makes sense if not I'll try to clarify.