Sometimes maybe we have experience see the ghost or "feel" it. How to differenciate whether it is just a delusion or it is the real ghost ?
It is possible that what we feel as ghosts actually are the future people with their technologies visit us through the mysterious dimension ?
Until now (2023) we can be connected to each others real time to the whole world through video call or live streaming.
Maybe in the next future we also can visit the formerly live through these "strange" dimension.
Even also sent smell. Not only sent audiovisual modalities.