Cool, so if median Sydney house is now $500,000, in 2049 it should either be:
$8,000,000 (2x / 10yr)
or
$26,250,731 (2x / 7yr)
Let's go half way and say it'll be $17,125,365.
-Ian
p.s. I wonder if this forum and this post will be around in 2049 (when I'm 71).