Is it possible for a region of space in our universe to reenter an inflationary state? For example, if a particle accelerator collision of sufficiently high energy recreated conditions under which the early universe experienced inflation, would that patch of space inflate?
An argument in favor of it restarting is the notion in particle physics that all processes that are not forbidden by the laws of nature do actually do occur, combined with the fact that the microscopic laws of physics are reversible. So if the universe in an inflationary state could transition to a non-inflationary state of high energy density during the Big Bang, then given the right conditions it seems that the reverse process should be possible.
But intuitively it is hard to imagine inflation restarting. In my understanding, inflation creates space exponentially, and the created space has enormous energy density. It seems very counterintuitive that a local process could trigger something so dramatic.