Found this on a pastor's blog about five months ago (can't remember which, though): In the 1950s, Lutherans in this country were growing at an astonishing rate. In fact, in April 1958, TIME magazine noted this and predicted that if things continued unabated, everyone in American would be Lutheran by the year 2000. Well, we know how that turned out, don't we? (Perhaps TIME jinxed our forward momentum, especially considering that the last year Lutherans saw substantial growth in this country was in 1963.
I'm quite sure most other denominations are in the same boat as we...