This is the 428th most frequent Icelandic word.
margt
"Margt" means "many things" or "a lot" in English.
Here, 'margt' is used as a quantifier describing 'fólk' (people) to mean many or numerous.
Margt fólk elskar að kanna nýja staði.
Many people love to explore new places.
In this sentence, 'margt' is used as an indefinite pronoun to represent 'much' or 'many things.'
Það er margt sem við getum lært af fortíðinni.
There is much that we can learn from the past.
Here, 'margt' serves to convey 'many things' or 'a lot,' relating to the context of hearing various opinions or statements about the movie.