I have seen that, and I came close to buying one of those Lytro light field cameras so many times (but thankfully restrained myself). Light field seemed like a

I have seen that, and I came close to buying one of those Lytro light field cameras so many times (but thankfully restrained myself). Light field seemed like a huge obvious "way of the future" thing in the 2010s but with the benefit of hindsight it did not exactly seem to have changed the world.