Jonathan Cahn explains what he calls "The Mystery Of The Shemitah" for 77 minutes. Basically, there's this Biblical injunction that every 7th year the Jews were supposed to stop working and erase all debts (I'm still wondering what they were supposed to eat), but the Jews always defy God's comands, so they ignored this injunction for 490 years. As a result the Babylonians came in and destroyed Jerusalem and sent the Jews into exile for 70 years - one year for every sabbath year ("shemitah") they had ignored. At the end of 70 years the Persians come in and wipe out the Babylonians and the Persian king Cyrus rebuilds Jerusalem and puts the Jews back in their homeland.
Rabbi Cahn says the same rule applies to the United States, because the US was unique in that it was the only modern state that was founded on the principles of God's word, in effect setting up a new covenant like the one the Jews had thousands of years ago.
1870 - shemitah year - the US surpasses Britain as the largest economy on the planet
1917 - shemitah year - the US becomes a superpower
1945 - shemitah year - a new financial world order is established based on the US dollar
As long as the US (this rule only applies to the US and Israel) stays right with God then every seventh year will be a blessing, but if the US defies God then every seventh year will be a curse.
1973 - shemitah year - the US legalises abortion, defying God
2001 - shemitah year - 9/11, the symbol of America's economic might - the World Trade Center, which was built in 1973 - is destroyed, followed by a huge financial collapse of the stock market
2008 - shemitah year - the Great Recession starts, the worst economic crisis since the Great Depression (which also started on a shemitah year)
What happens next? I don't know. The last shemitah year was September 2014 to September 2015, which passed, and while there weren't any further economic disasters or terror attacks, the Supreme Court did deem itself infinite power over all aspects of everyone's lives allegedly to protect the "rights" of maybe one tenth of seven tenths of one percent of the population, but really it was a naked power grab that followed 30 years of public indoctrination to move the overton window.
Is there anything to this? I don't know. This might all just be coincidence. It is an interesting hypothesis, and it is an interesting lecture.