>>52862832>the last time machine that existed in this series didn't need wacky energy crystals to function, this point is mootThe last time machine wasn't built to go into the far past and future with the explicit purpose of catching and bringing back pokemon.
Also those wacky energy crystals are referencing deep glass structures that are in the Super-Kamiokande Neutrino Detector in Japan. Ask yourself why the device was deep underground and the final battle room was shaped in the manner like pic related.