Imagine having a well financed plan to kill over 2/3rds of the global population, and then dividing and controlling the remaining world. The rich and powerful want to live to 150 years or older and remain in good health through blood transfusions, adrenochrome from children, and organ harvesting. They spent 60+ years planning to rule the world by buying off corrupt politicians, judicial system, business leaders, medical industry, military leaders, main stream media, hollywood, the music and entertainment industry, education and controlling all financial institutions.
Imagine all that time and effort spent... only to watch it all fail miserably. These "Elite" may end up imprisoned or executed, with all their assets seized. Some may be stripped of power, or forced to expose all of their plans publicly. That's why they are in a panic.
Half a century?
Oh no, that's just the terminal phase. It's the last 2600 years.
And it's coming to an end.