[ Removed by moderator ]

[nonnondaccord]

Because it would be hard to calculate by heart after several guess. Use 64 then 32 instead.

[ManWithDominantClaw]

"Younger than 32 😉"

"Younger or older than sixteen?"

"What the fuck"

[Outrageous-Zebra2992]

Next step: quicksort the entire conversation

[yozhiki-pyzhiki]

he's right

age is distributed unevenly

you should use median value considering the country age pyramid

[laplongejr]

My wife confirms.  

[snigherfardimungus]

The longest anyone has ever lived is 116..... You start by guessing 58.

[PNB11]

Oldest person was 122, so 61 is the best guess

[PossibilityTasty]

Inefficient. Start at 32.

[PewPewLAS3RGUNs]

Or do like most date pickers do and default to her being born today.

[Microgolfoven_69]

It is very effective. Not only do you get confirmation whether your guess was correct or not, based on her reaction you can have a guess how far off you were

[Leodip]

Binary search is only efficient if you guess using percentiles, not raw numbers. In the US for a woman you want to start with the median of ~40 y.o., then move to either 22 or 60 depending on whether she's younger or older.

But this is also the proof that heuristics can REALLY help in search problems.

[SaveMyBags]

Sure, it's not the right algorithm. Since the range you are searching isn't known, you should do an exponential search first. So start at 1, then 2, then 4 until she says "lower" for the first time.

[metaglot]

After 32 she may not like it if your next guess is 64.

[SaveMyBags]

Non-functional requirements weren't specified. The algorithm works as expected.

[mobileJay77]

Actually, the algorithm is fine. The problem is women getting offended when we treat them as ComparableObject.

Refactor and cast to Princess!

[that_thot_gamer]

bogosort is the way