We all accumulate stuff. Books lamps, dishware, that weird lamp your aunt got you for your thirteenth birthday.
Stuff grows around us, in our closets, on our desk, within our bookshelves. Over time it grows, seemingly without rhyme or reason.
When the world starts to shift to technologically enabled mixed reality, some of that stuff will go digital. The toy puzzle on your desk might be a four dimensional hypercube, seemingly part of the physical world, but actually only a sequence of bits stored in the Cloud.
We will still accumulate stuff in our house or apartment, but the stuff will be different, perhaps odder and more mutable. We will continue to resist tossing it out, for sentimental reasons.
But there will be one dramatic change: When we pack up our things to move from one house to another, future stuff will be a heck of a lot easier to take with us.