It's strange to think that the most they spent on an album is a few months - yet, they did things like this, working out their vocals.
And that's for an actual band - four guys, each having their instrumental parts and their vocals to record. Not counting the guest musicians and orchestras, whose parts Martin had to write down before he actually got them in the studio and set them up to record.
All without the convenience of non-linear playback systems and digital editing.
All of that in a recording career that spans over only 8 years, the first half of which was split with tours and promo and making movies. Amazing.