I agree a no bandwidth premise challenges a many assumptions -- I actually started with the thumb drive bit (even available in Sweden from whence the question comes) -- particularly assumptions about content delivery.

Anyway, I'm not advocating Smalltalk even if I think it's a good idea to seriously consider old technologies. My thoughts were more along the lines of '30MB' as of the same logical form as that time I thought, '180 KiloBytes! Why would I ever need two floppy drives?'