If virtual particles pop into and out fo existence in less than the blink of an eye, 1. How much less than a blink...less than 10-43 seconds? 2. Where is this happening now as i speak..in front of my eyes, in my next door neighbor's house, or in places far far away..? 3. If some of these particles created matter, why is no matter being created now...or is it? 4. Is the creation and destruction of virtual particles the long sought perpetual motion machine? Thanks.