What would happen if there were 4'9" (146cm) wide seats in Business Class?

What would happen if there were 4'9" (146cm) wide seats in Business Class? I'm trying to calculate the width of a seat placed on the A380's 6.54m wide lower deck in a 1-2-1 configuration similar to SQ's Business Class seat (which is 2'10" wide but on the upper deck).

I even included 3 10cm wide tables to put between seats (or between a seat and an aisle).

Sorry, I meant 4'8".

This is why herringbone was invented.

What would happen? I dunno, people would say "geez, this is a wide seat".

SQ has an overly wide first class seat on its regional 777s. Apparently people didn't like it so they added a cushion to sit adjacent to you. A seat that's too wide to use both armrests is a pretty pointless innovation unless you want to share it with someone.

1-2-1 on the lower deck of an A380 is the same density you'll find in SQ's A380 suites class, which gives you a seat and a bed next to one another, plus a nice bit of wall. That sort of density isn't something you could possibly sell as business class. (Unless of course it was herringbone or staggered)

Too wide, unless it was a very soft leather lounge type seat. That would be very nice.