I was just wondering, after reading Jeremiah, if a reason more people do not believe is it is so hard for them to believe something positive will happen, in the future.

Jeremiah 28
"8 From early times the prophets who preceded you and me have prophesied war, disaster and plague against many countries and great kingdoms. 9 But the prophet who prophesies peace will be recognized as one truly sent by the LORD only if his prediction comes true."