Within Metapsychics Research you will find phenomena with the use of Ectoplasm such as materialisations, direct voice, spirit fragrance, and various form of energy.
However, experiments mentioned require darkness and thus doubt of genuity. in todays world with AI and video effects, it becomes extremely difficult or rather impossible to convince people that there is communication with deceased. It becomes a subjective experience. Although experiments with Ectoplasm does not give objective proof, it is important to enhance survival.

SID, Spirit Identiy with the use of Telekinesis is the only method with an objective platform. It is not how the telekinetic energy is presented, but rather if the Spirit ID can be validated with simple thuds. A match in knowledge, gives Spirit ID validity similarly to a DNA match. SID becomes solid proof of survival.