Avoiding the 20th Century's Two Great Wars

For John, BLUF:  Messing with the arc of history can bring bad results.  Nothing to see here; just move along.

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The InstaPundit, here, has this little blurb:

I had an idea for a science fiction story:  Man travels back in time to prevent assassination of Franz Ferdinand, and successfully prevents World War I, and, by extension, World War II.  The result is a century of peace and prosperity, but somewhat slower technological development, so that in 2038 we’re just seeing the earliest beginnings of a space age — as a killer asteroid, unstoppable, appears and wipes out civilization.

I like it.

Hat tip to the InstaPundit.

Regards  —  Cliff