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by madengr 3122 days ago
Yep, solar cells are similar. So many 20% efficiency increases, they should be at 200% by now.
1 comments

If every year you lose 20% of your money, how long does it take until you're in the negative?
If you have a solar cell that starts with 20% efficiency, how many years of “20% increase claims” does it take to reach 200% ?