The events that define and breath life into  a century, don't fit into the metrics of time keeping.  The 20th century wasn't born in 1900 , it's birth was in the 1880's with the invention of the light bulb.  The 19th century didn't  pass on in 1900, the Polish cavalry  took to the field in 1939 against German tanks. Events overlap. The 21st century was born two decades ago with the rise of the PC, and one of the death throes of the 20th has been happening for a year now.

I've thought for several years now that the second Iraq War was more about preserving the 20th century than protecting America.
I assure you that if Iraq had salad dressing buried under it rather than crude oil we wouldn't be fighting there. Now this hellish debt bomb  has blown away everything of importance.

John McCain wants to build 45 new nuclear reactors ( A very 20th century item), don't worry we'll never do it.  Because those things run 5 to 7 Billion dollars a piece, and only governments can pay for them. They'll have compete for resources with those 600 Million dollar drilling rigs John wants to buy.  All of which have a delivery time of 5 to 10 years.
The "do it all" idea died  2 weeks ago with that 20th century debt bomb.
We will all have to begin making tough choices from now on.