Do I understand this correctly that the problem of accessing eg. twitter form China is because the DNS are poisoned? So if for example, one would try to access twitter from China by typing IP address instead of "twitter" he would got to the page?
Isn't there another solution for China great firewall, to change your PC's DNS? Instead of having your ISP's DNS to type google DNS or something and you would get results for pages from googles DNS servers (theoretically from America) so you would again be able to get to twitter in America?