What is not refreshing about those things is that there are absolutely no guarantees. As a form of evidence I would offer all of the predictions about the end of the world that have come and gone, or all of the times people were so sure that all of these sorts of prophecies would be brought to culmination during their life-times... but, of course, they died. The pattern of non-completion (or else "completion" only by means of amazing stretches of the imagination) of these kinds of wild prophecies is so ridiculously compelling that it is a bafflement why anyone would keep rehashing these things with even an ounce of confidence. And yet here you are...
The ' so sure ' thinking does Not make the Bible as wrong, but just made the calculations or guesses as wrong.
I find at Proverbs 4:18 that spiritual light (biblical education) would grow lighter and brighter with the passing of time.
Daniel 12:4,9 points to the time when people would go ' to and fro ' criss crossing through the pages of Scripture and find answers. One BIG clue today is connected to the vast international proclaiming about God's kingdom government of Daniel 2:44. That spiritual work is being done on such a large global scale as Matthew 24:14; Acts 1:8 says that people even in remote areas of Earth can now have Scripture in their own mother tongue or native language as never before in history. So, that coupled also with words such as found at Luke 21:11 mentioning the type of earthquakes we have today as ' great ' earthquakes shows we are nearing the soon coming ' time of separation ' to take place on Earth as described in the illustration found at Matthew 25:31-33,37.