What changes have you seen in the last 20 years ?

This morning I received this email from an older friend of mine: “[A friend loaned me a book and said, “I thought of you and thought you would like to look at this book.”  It is 100 years old; actually, the copy he loaned me was 50 or so years old, but the first editionContinue reading “What changes have you seen in the last 20 years ?”