[sigmoid10]

In line with research of the past years this has moved from being absurd to being somewhat debatable. With the ER=EPR conjecture (which this paper heavily references) for example, you could theoretically argue that it's easy to create wormholes - in fact it happens everywhere all the time. The problem is that those are not Star Trek type wormholes that let you move macroscopic matter across galaxies, but everyone outside the field immediately thinks of them thanks to decades of scifi popculture. The wormholes that Susskind et al. are talking about are much more modest.