I agree with you, but here is the situation:

- your pubkey is your starting coordinate

- any two pubkeys will be an average of half of cyberspace away from each other

- on a gaming PC it will take 1,500 YEARS to travel across half of cyberspace

- its not that you wont meet strangers. You will never meet anyone with standard hardware.

- mining cyberspace actions with an ASIC will require special ASIC mining software that hasn't been written yet

- owning an ASIC to use cyberspace shouldn't be a prerequisite

Having tested cyberspace travel during development of ONOSENDAI, I can tell you that the absolute immensity of the space is a problem that needs some sort of relief. Fair and random block distribution seems quite reasonable to me.