The interrobang (‽) was invented in 1962 by Martin K. Speckter, an advertising executive who looked at the English language and noticed something obvious that nobody had fixed. We had a way to ask a question. We had a way to express disbelief. We had no single mark for the moment when both happen at once.
You know the moment. Someone tells you they paid $47 for airport eggs. Your brain doesn't process that as a question, then separately as outrage. It's one reaction. One breath. "You paid how much‽"
That's not a question mark followed by an exclamation point. That's not an exclamation point followed by a question mark. And it's definitely not the chaotic� energy of slapping both down like a toddler hitting a piano with two fists. ?! is two punctuation marks failing to do one job.
The interrobang does one job.
English has 800,000 words, and we can't commit to a single piece of punctuation that captures genuine human bewilderment. We retired the pilcrow from daily use. We let the semicolon become a personality trait for people who went to liberal arts colleges. But somehow the interrobang, the one mark that sounds exactly like what it does, never got its seat at the table.
Speckter put it in front of typographers. They designed it. Remington even put it on a typewriter key. Then it just... didn't take. Not because it failed. Because nobody with authority over standardization bothered to push it through. The Unicode committee gave it a code point (U+203D, if you're curious) and then the world collectively shrugged.
This is, if you think about it for more than ten seconds, a small, perfect example of how useful things die. Not because they don't work. Because adoption requires institutional will, and institutional will follows incentive, and there is no incentive structure for making punctuation better. Nobody's quarterly earnings depend on it. No committee gets funded to solve it. So it sits there, technically available, universally ignored.
I use the interrobang. I may be the last person who does. I'm fine with that. Every time I drop one into a sentence, it does exactly what Speckter designed it to do. It holds two simultaneous truths in a single mark. It says: I am asking, and I cannot believe I have to ask.
If that's not the most appropriately useful mark in the English language for this insane timeline that we are currently living in, then what is‽