if our skin cells are constantly dying and being replaced by new ones, how can a bad sunburn turn into cancer YEARS down the line?
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UV rays cause skin to die because the skin that has damaged DNA will commit suicide. If the DNA is damaged just right it can’t commit suicide and multiplies instead with bad DNA and RNA.
DNA is a blueprint for complex proteins. Imagine a factory sending out bad parts that aren’t well designed. Well you build those parts up for years. It comes to light that it’s been making this thing wrong for years. But its too late, it’s in everything.
You might think that this analogy sucks, but there is a real life equivalent. In the capacitor industry there was a formula that was stolen by corporate espionage. The person who stole it recreated the formula at first at a different country, then later went into business making these capacitors with bad formula. It turns out there is an error (rumor has it is that it was an intentional error in case it was stolen) that makes the formula not a perfect match for the original capacitor. Undercutting the market since no R&D needed to be recouped, this stolen formula cornered a huge chunk of the market spreading all over the world and into different industries. Because patent law is not enforced in China, this formula is likely replicated to multiple companies and we know of only those 2 replications
Anyways this stolen capacitor design was made very very cheap and it made it to most consumer electronics for years. Then we see electronics started failing very very frequently at a certain time after being used. It turns out all the electronics installing this capacitor dies an early death as it isn’t as good as the well designed capacitor that has the correct formula. https://www.theguardian.com/technology/blog/2010/jun/29/dell-problems-capacitors
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