Something happened last weekend. All of a sudden the Village of Cooperstown was quiet; the sidewalks were sparsely populated; there were a number of parking spaces on Main Street (though not so many opposite the Hall of Fame, where the sign says 15-minute parking); there were no horns blaring (though the fire department siren was working hard, as is its wont); and there were fewer cars speeding up and down the lake and on Route 28, south toward Oneonta.…