“ Ay me ! ” as Lysander oncefamously saidto Hermia . “ For aught that I could ever read , Could ever hear by tale or history , The course of unfeigned lovemaking never did hunt down smooth . ” To put it more succinctly : sexual love stink . But it does n’t have to ! Despite theirundeservedly asexualreputation , mathematicians have had a mode to incur The One for decades – it ’s called Optimal Stopping Theory .
“ [ Optimal fillet theory ] literally blow my mind,”wrote mathematician Hannah Fryin her 2015 bookThe Mathematics of Love : Patterns , Proofs , and the Search for the Ultimate Equation .
“ If you select not to follow this strategy and alternatively opted to square up down with a collaborator at random , you ’d only have a 1 / n fortune of happen your true love , or just 5 percent if you are fate to date 20 citizenry in your life-time , for case , ” she explained . “ But … following this strategy , you could dramatically change your fortunes , to a whopping 38.42 percent for a destiny with 20 potential lovers . ”

Don’t worry, we’ll explain it in a minute. Image credit: Hannah Fry via Ted.com
So what is this magical formula ? Well , it looks like this :
But unless you ’ve a degree in advanced numerical matchmaking , that likely does n’t mean much by itself . allow ’s break-dance it down a bit more – and see if we ca n’t take some date advice from the equation along the way .
The good word is , it turns out the mathematically - optimum date game is one you ’ve likely been playing already . The best tactics , accord to this chemical formula , is to engagement around for a footling while – and once you ’ve got a minute of experience of who ’s out there , then settle with the first person you meet better than everyone who amount before .

As you get pickier, your chances of finding love increase. Up to a point. Image credit: (C) IFLScience
And it ’s the distance of that “ slight while ” that the recipe is assure us . So , first of all , we ’d best excuse the terminus . We haveP(r ) on the left , meaning the probability of finding the unspoiled suitor based onr – the telephone number of potential Ones you rule out – andn – the total number of possible Mr , Ms , or Mx Rights you have overall .
So , say you ’re destined to meet10 potential romantic partnersthroughout your life-time . Then your probability of finding The One count on how long you hold off like this :
And the more people you ’re destined to date , the more optimal fillet theory can ameliorate your odds . For 25 potential partner , your chances look like this :

You can start to see a pattern, no? Image credit: (C) IFLScience
This time , your hazard of finding the good match are high if you reject the first nine potential partners – that gives you a 38.1 per centum fortune of true love . By compare , choosing at random would give you just a 4 percent chance .
And if youdon’t feel like limiting yourselfto a finite number of potential pardner – sure , there are only 8 billion people on Earth , but if we need toinvade Alpha Centaurito bump a date then so be it – thenwe find the ultimate gash - off : 37 per centum .
Now , there are a span of flaws with this strategy : “ envisage that during your 37 - per centum - rejection phase you start date someone who is your perfect partner in every potential style , ” Fry point out . “ Not yet having meet everyone , you ’d have no way of knowing that they were the best of your list and you ’d permit them go . ”
“ unluckily , once you started look more badly for a living partner , no one skilful would ever descend along . According to the rules , you should continue to reject everyone else for the eternal sleep of your life , produce onetime and decease alone , ” she compose .
And the opposite situation is just as unfit : if everyone you decline is frightening and boorish , then “ the first person you meet better than everyone who come before ” may well be the first person you get together , period . That person might be only the tiniest bit good than late matches – but nevertheless , the strategy would have you conciliate down with them into an only - marginally - dear - than - awful womb-to-tomb partnership .
Then there ’s the vapourous logistics of it all – after all , who knowsin advancehow many people they ’re going to date in living ? But here , at least , the 37 - percent prescript has an vantage – because as it sour out , it can be used in a whole host of different situations .
So , Fry pointed out , the trouble can be adjust to account for time , rather than individuals : “ Say you get going dating when you are 15 years quondam and would ideally care to settle down by the time you ’re 40 , ” she explained . “ In the first 37 per centum of your dating window ( until just after your twenty-fourth birthday ) , you should reject everyone … Once the rejection phase has passed , pick the next person who do along who is respectable than everyone who you have meet before . ”
And it does n’t even have to give to romance . “ Have three months to incur somewhere to live ? Reject everything in the first calendar month and then blame the next family that comes along that is your favorite so far , ” Fry wrote . “ Hiring an assistant ? Reject the first 37 percent of candidates and then give the job to the next one who you prefer above all others . ”
So there you have it : the headstone to a successful love life – and peradventure also successful firm buying and hiring strategies – was in math this whole time . This just goes to show what we ’ve known all along : mathtruly is the sexiest of all the sciences . Take that , sexology .