Conclusion

The airplane has drastically changed the world in many ways, by speeding up travel, improving military tactics, creating millions of jobs, improving high altitude science, and  increasing access to rural areas and improving access to goods in those areas. There is no doubt that if the airplane had never been invented, the world would be a radically different place, with slow shipping and travel, old-fashioned battles on ground, millions less jobs, storms not known to be dangerous, and the absence of small rural mountain towns.