Editorial: Special issue on 2021 BOFWS

The Blue Ocean Forum for Worldwide Scientists (BOFWS) has gone through a history of 5 years. It has gathered high-end experts, scholars and professors as well as elites from leading enterprises in the worldwide information and communications technologies (ICT) field,. The grand meeting gives full play to the "star effect" of industry experts, represents the highest academic level in the current global ICT field, and plays a far-reaching role in promoting the ICT development.