TL;DR: The bridge collapsed because soldiers marching on it created force they hadn't anticipated, soldiers breaking step supposedly don't have as much of an impact.
I was wondering about encryption (is this what you're talking about?) because these algorithms change so frequently I'd be surprised if they had anything back then considered 'secure' by now.
You can use backreferences \1 \2 etc. but you can also give them names explicitly.
it looks like this: (?<name>inner-regex)
Some flavors support it, kotlins doesn't apparently.
Fair point. My browser (FF) supports 'search in tabs' as well and suggest it over a new search engine result when typed in the address bar.
I don't know what about the style makes me think this, but it looks like FF on Windows in the Screenshot.
I think this is what they are referring to: https://en.wikipedia.org/wiki/Broughton_Suspension_Bridge.
TL;DR: The bridge collapsed because soldiers marching on it created force they hadn't anticipated, soldiers breaking step supposedly don't have as much of an impact.