But noone went the fibre route in 1990. To my knowledge only widespread FTTH happened in the early 2000s, at which point there was affordable PON equipment. My

But noone went the fibre route in 1990. To my knowledge only widespread FTTH happened in the early 2000s, at which point there was affordable PON equipment. My point is that how you'd plan a FTTH network in 1990 would be radically different to how you would do it even 10 years later. There is a chance that you could have planned it entirely wrong given the changes in technology which came about rapidly after that.