Which two decades is there a bigger contrast between?

[darklordoftech]

You're free to take non-political things into account

[Middle-aged Europe]

Option 1.

The 2010s saw sequels or new cinematic installmens of Star Wars, Star Trek, James Bond, Rocky (if we count the Creed films), Die Hard, Terminator, Alien, and Halloween... in some of these cases reuniting the original casts from the 80s. Which sequels of popular 1950s films featuring the original cast members were released during the 1980s??

Also, during both the 1980s and the 2010s, the United Kingdom had a female prime minister. This would have been pretty much unthinkable during the 1950s. (In America, we had a female vice-presidential nominee during the 80s and a female presidential nominee during the 2010s.)

The 50s are like a different planet, while we're still living in sort of a perpetual 1980s today.

[Mr. Smith]

Option 2

The internet and smart phone have radically changed everything.

The '50's and 80's were less polarized on everything (yes, even accounting for Civil Rights) and as Atheist Dad once said..."y'know, how we did things in the 70's, not much different from the 20's, besides the TV anyway".

Not even taking into account social media.

Also, the Soviets still existed in the 80's, so The Cold War was still on...and few could've predicted whatever-the-hell you call it now.

[Middle-aged Europe]

Option 2

The internet and smart phone have radically changed everything.

The '50's and 80's were less polarized on everything (yes, even accounting for Civil Rights) and as Atheist Dad once said..."y'know, how we did things in the 70's, not much different from the 20's, besides the TV anyway".

Not even taking into account social media.

Also, the Soviets still existed in the 80's, so The Cold War was still on...and few could've predicted whatever-the-hell you call it now.

You make some points that have merit... still, technology-wise the 1980s saw the first mass introduction of the personal computer and video games. Otherwise there wouldn't have been movies like WarGames or TRON too (the latter one is another example of a 80s movie with a sequel released in the 2010s which partially brought back the original cast). Tech giants that still dominate the industry today like Microsoft or Apple saw their rise during the 1980s, with the first version of Windows being released in 1985.

Microwave ovens or color TV also weren't in mass use during the 50s, just like black and white movies weren't already phased out back then. And there was no human spaceflight in the 50s.