Many are constantly looking for signs and that's turned into big business for those willing to constantly offer up new signs for people to be fixated with. Then when the excitement wears off, or the predictions don't come to pass, new signs are put forth and the cycle repeats itself. Israel became a nation again in 1948. Predictions that Christ would return by 1988 abounded...until 1988 came and went and Christ hadn't returned. Then the new sign focused upon the Jews capturing Jerusalem in 1968 which they declared meant Jesus must return by 2008...until that year too passed with no return of Christ. New signs to take it's place came in different forms from different prophecy "experts". Along with scores of other signs to take note of, other dates to consider, more signs to look for. Beware of the Soviet Union they are ushering in the End Times. Beware Saddam Hussein he's the new Babylon and he's going to bring about the End Times. On and on the pointing to this or that as a sign and the constant and changing predictions have poured forth in abundance over the past several decades. Countless books and movies all taking their own slant on these things. Now, after several decades of this, with millions of Christians living through much or all of this, there is growing disillusionment with the pre-trib rapture view and the constant barrage of signs and predictions associated with that view. While the pre-trib rapture view wasn't a main view elsewhere, it came to hold sway in America but now the pendulum is swinging away from that view to others. In the process, some are becoming "doomsday survivor" minded, some are so disillusioned they have all but turned away from anything to do with prophecy or the End Times, some are returning to views their churches held prior to taking on the pre-trib rapture view, others are looking elsewhere. The Left Behind series (perhaps well intentioned?, I don't know) and the attending signs to look for and predictions, eventually did great harm to the pre-trib rapture position among many Americans. Scripture is clear we are to occupy until Christ does return. We are to continually be about the Master's business so when He does return, and we won't know when, He will find us being faithful. No call to stockpile a years worth of dried food, or weapons for a personal little army, or build bunkers to hide in, or to scour the news sites and peer into a telescope looking for signs. Rather we are called to go into the world and spread the Gospel, live so men see Christ in us, spend time in prayer, learn the Scriptures, be ready at all times for Christ to return by living for Him full time.
The ants store food for the winter, much like the farmer and gardener who tend their crops in season, then harvest and store for the winter. No matter where I've been or the circumstances, God has always provided me with food as He has for countless millions of others who have/do put their trust in Him.
We have to be careful with use of "world" since there are many times in Scripture when it refers to "world" but doesn't mean the entire planet but a localized area. I've seen several times over the years where a person who knows these passages of Scripture will hammer the first person who brings up references to "world" saying that has to mean the whole world. "World" has various meanings in Scripture depending upon context so we need to keep that in mind when stating our positions so we don't fall into traps some folks use (not speaking of anyone here, I'm thinking of experiences I've had and seen over the years).