"Media is here to stay" is the correct phrasing because "media" is a collective noun referring to a singular concept, so it should be paired with a singular verb "is."
The noun form of "theorize" is "theory."
SAY Media was created in 2005.
Some theorize we evolved, some say we were created by a higher power. There is no concrete proof of exact source.
"I theorize you will soon register and have a real user name." "Experiments with alpha particles led Rutherford to theorize that most of the mass of an atom was concentrated in a small area, the nucleus."
theorize
scientists theorize that it was jupiters gravity that kept it from forming
Scientists theorize that higher global temperatures are do to the greenhouse effect.
Theorize is the verb form of theory. Theorise is the British English spelling.
Hypothesize.
this is the way to say mediaLos medios de comunicaciónit covers all types of media
Speculate