Why did you choose 'Okay' for Augustus's and Hazel's 'Always?' Also, why the always thing?

Well, always is just an inherently ridiculous concept, but of course you want to say it to people you love, right? You want to promise them that you will always love them, that you will always take care of them, that they needn’t worry because you’re always going to be there. You won’t always be there, because at some point you’ll be dead or stuck in traffic or in love with someone else or whatever.

Most of us (me included) don’t think about the ridiculousness of what we’re actually saying when we say, “I’ll love you forever*,” or “”I will always remember this day,” or, “I’ll never forget** you” or whatever. Like, I say those things all the time, like most people do. But Hazel and Augustus are both a lot more measured in the way they imagine themselves and their love for/responsibilities to other people, hence them adopting “okay” as the word that serves as an expression of their love for each other.

• It’s important to note that forever is not a long time just as infinity is not a large number. Forever is infinite, and it’s a very bold to make declarative sentences about infinities.
• * This seems to me a very fate-tempting thing to say. Like, what if you develop dementia?