Imagine you would read this, sometimes in the future:
"The programs making the operating system of your computer are made up of around ten million code lines, but your future computing device may harbour a hundred million artificial life molecular beings. For every code line in your ancient windows OS, there will be 100 virtual bacterial ones. This is your unique MicrobiomeOS and it has a huge impact on your social life and even your ability to interact with the Internet of Things. The way you use your computer, in turn, affect them. Everything, from the places we visit to the way we use the Internet for our decentralized computations influences the species of bacteria that take up residence in our individual microbiome OS."
But let's dream bigger. Craig Venter proposed to send a Digital Biological Converter to Mars and then send by radio any DNA encoding from Earth to Mars. We could use this biological teleportation in more ways, here on Earth.
In the article  I imagine that's possible to identify real molecules which react like in the simple chemlambda graph rewrites. A Digital Biological Converter could be simply a device which prints a chemlambda molecule into an autonomous computing molecule in the real world.
If something like this will happen then there will be no difference between the virtual world and the real one.
A printer like the one proposed by Venter, a machine which turns artificial chemlambda into real chemistry, is a portal from the virtual world to the real one. A sensor, which convert real chemical reactions into artificial chemlambda ones, is a way from the real world to the virtual one. Being based on the same principles, that simply means they are one big united world. To explore and to live.
Going back to the MicrobiomeOS idea, the operating system on your computer(s) could be protected by the virtual arm of your immune system.
 (journal)(arxiv) - M. Buliga, Graphic lambda calculus. Complex Systems 22, 4 (2013), 311-360
 (doi)(arxiv) - M. Buliga, Chemical concrete machine (2013).