Despite airlines' attempts to board us in an order that reduces bottlenecks, we've all been stuck behind a passenger blocking the aisle while loading the overhead bin. This slows down the boarding process and, potentially, delays the departure time. Molon Labe's solution is a row of seats where the outermost one slides up and over the center seat, temporarily increasing the aisle space:
With the seats tucked in, the aisle now goes from 19" to 43" wide. The company reports that's enough room for a wheelchair to roll through, and it's presumably enough room for us to slide past other people.
The presentation images are a little underwhelming, and the company's claims seem a bit lofty—they're claiming the seat design can save airlines $75,000 a day in fuel, as "Airlines waste energy powering essential services while on the ground." But despite the primitive renderings, the system is apparently for real; they've announced they're debuting this Side Slip Seat at the upcoming Aircraft Interiors Expo next month in Germany.