Quote - There will come a time in the not-too-distant future when you'll need software and it will only be 64-bit.  There are few 16-bit apps written these days (very, very few).  And, of course, to run a 64-bit app  you will need 64-bit hardware.

16 bit and 32 bits apps are very different, but there's no difference between a 32 bit and a 64 bit application unless you want you access more than 4 GB or your code use any of the eight new 64 bit registers and some new opcodes.

Stupidity also evolves!