Before anyone points it out, World War II had a huge impact on the people involved. Millions of people were murdered brutally and that can never be forgotten. Please consider this as more of an academic brainstorm than anything else, I certainly don’t mean to belittle the things that happened or cause offence.
With that over, read on for my topic.
Without WW2 we wouldn’t have had such a huge advance in aviation, flying boats would have reigned supreme for much longer due to the lack of long runways. The jet engine wouldn’t have been developed as quickly which means no fast cheap aviation travel.
Without WW2 there would have been no Manhattan project, as the nuclear bomb wasn’t needed. No nuclear weapons means no ICBMs as there was no need to lob small conventional bombs halfway around the world. No ICBMs means no space race, as the military need for large rockets wouldn’t have existed, and all space based research would have been relegated to civilian agencies. NASA wouldn’t have been funded to the same extent because there would have been no rival to beat. No space race means no satellites, severely limiting global communications and other things.
No WW2 means no urgent need to decode military encryption (enigma) which means computers would have been set back a great deal as they weren’t needed. RADAR and similar radio based technological advancements wouldn’t have occurred which would leave long distance communications to telephone lines.
The Internet wouldn’t have been created when it did, both because of the lack of computers and the lack of requirement for it militarily.
Medical advances in antibiotics and other treatments wouldn’t have happened as quickly, as there was no need for them on the battlefield.
The US would have remained within its isolationist policy, negating the advances it has given other countries since. The British Empire would have lasted longer, perhaps to this day. No WW2 means no military build-up in Europe, which also means no Soviet occupation of a lot of Eastern Europe which, combined with the US isolationist policy, means no cold war, or at most a vastly reduced one.
A lot of 20th century development occurred because of governmental funding due to war. Where would we be without it? A lot of the above things would have probably happened anyway eventually, but how much later than they actually did?