The only way to look at security is to ask: “How many US Dollary-doos does it take to break this?” And if something costs more of them US Dollary-doos to break, then it is “more secure”.
It takes zero US dollars to walk onto my lawn and take a flower pot with you. Yet putting the flower put onto the sidewalk would drastically increase the odds of someone actually taking it.
Opportunity and convenience do matter in terms of security. Maybe more in the physical world, but it's not irrelevant in the digital world either.
Convenience aspect quckly turns into money at scale either directly or indirectly through time. It takes zero dollars to take single flowerpot but if you want to take 10000 you will need car, fuel and longer it takes to walk onto and away from lawn less flowerpots in an hour single person can collect. Same applies to computersecurity entering single captcha costs zero dollars but at scale you will have to hire someone doing it at x dollars per 1000 captchas.
So, you can't account for that the cost of scale? I guess that makes sense. I'll never ever ever measure things in dollars again because apparently I can't account for the effects of economies of scales...
Or I could, you know, take the time to inform myself about these things.
