Aight so
Cursed energy is like electricity
Cursed technique is like a device for that electricity
You can just release cursed energy into an object, but you wouldn't be able to scroll youtube with just pure electricity right? So you gotta use cursed techniques to propel it.
Oh also the hollow purple is basically putting a weak black hole (pulling force) onto a weak white hole (pushing force) which in real life would probably rip reality itself, but in jjk it makes this rly cool explosion
