Our Prophet (saas) informed 1400 years ago that his students would be able to listen to the discourse of Hazrat Mahdi (as) live and ask questions so would receive responses right away

Ghaibat Nomani: It is narrated from Ahmad bin Hawza from Nahawandi from Abdullah bin Hammad Ansari from Muhammad bin Ja’far that Imam Sadiq (a.s.) said:

“When Qaim (a.s.) rises up, he [Hazrat Mahdi (as)] will appoint a person in every province of the earth and tell him: If you ever be in a position when you cannot understand or you do not know that what judgment you should deliver, glance at the palm of your hand and act upon what is mentioned there…”