Or you could take the other option: Chuck a dumbass into your story who literally doesn't understand a thing, thus forcing all of the other characters to constantly stop and explain every aspect of the world to him. Like so:
" General Klogg's Pogofighters are bouncing over the city walls! Quick, to the rhythm-cannons!" N-dah Gaim, robo-temptress of the Seventh Veil, screamed in alarm.
"General who's whatfighters are doing huh now?" Biff Manface asked (manfully).
"I forget, Manface, despite your chiseled jawline and just ... really, truly rockin' pecs (seriously, they're so, so good) ... that you are but a human, and a stranger to our lands. General Krogg is the former leader of Klogglandia's dancing warrior caste, you see, and his elite band, or 'crew,' of Krumping assassins have ..."
And so forth.
If you think that's a hack move that you, as a discerning reader, wouldn't tolerate, think again. It's been utilized in nearly every famous sci-fi work in history.
There are easy ones to spot:
"And also to teach these future-chicks how to bone!" -- Gil Gerard (not even in character).
The only reason their hero existed was to provide the show's writers with an easy excuse to explain everything from technology to politics in terms the audience could understand. Demolition Man did the same thing, subbing Gil Gerard's sleazy charisma and legendary hair volume for a (relatively) unfrozen Stallone as the moronic protagonist who needs bathroom fixtures and restaurants explained to him like the giant, muscle-bound child that he is.
But there are subtler ways writers do it, too: It's no coincidence that Luke Skywalker was a hillbilly from a backwoods planet. "Shucks and golly geez, y'all, you'd best explain the back story of this here space war to me, 'cause I ain't never seen no 'Em-peer-eee-alls' before, much less no big ol' hairy 'Walk-ees.'" Paul Atreides was a recent transplant from a foreign planet when
"OK, listen, I know it's a desert planet and all, but caves are still chilly, keep in mind ..."
It works the other way, too. You can actually track the downfall of a series by its increasing lack of a loveable, moral, idiot lead. I'm talking about