there is an empty cavity I may have mentioned, which I first discovered a couple weeks back and which I fully opened yesterday.  It’s about 20 inches wide by 24 inches deep by 8 feet tall.  About 15 cubic feet.  That space has just been languishing, unused by the world.   A small wilderness lost in the midst of civilization, you might say.  But it’s emptier than wilderness. There aren’t even any spider webs in there.  Not even a cob web.  Just empty space.  Having opened it, the world is now 15 cubic feet bigger than it was before.   It’s almost as much space as is contained in a refrigerator/freezer combo.

Before I looked inside the structure, I assumed a duct ran through it, and that’s why it was there.  In fact a duct can be seen through the cavity… but the duct runs alongside the cavity, vertically.  The duct is adjacent to the cavity.

The human body has a density of about 62 lbs/cubic foot.  So you can figure that a 186 lb human is 3 cubic feet in size.  Five such people would fit in the space of the cavity, if liquified.

Having opened this cavity, a bit of void has been loosed, and is now homeless.  This void is now at large in the world, but initially, when I first opened the wall, it just sat there unmoving.  It was a bit surprised, understandably.  But I woke up this morning and had a look, and it’s now gone.