After reading this article, it now seems like BTC is not equipped to to handle general relativity. If we ever become an interstellar species that seriously uses cryptocurrency, I'm not convinced that BTC will be sufficient. The only reason it works on earth is because the "ticks" of its clock are slower than the speed of light, but faster than we need transactions to be settled. If I use BTC to buy a product from a company on Mars, will ~10min be long enough? What kinds of new attacks would bent space give rise to?

These are all things I hadn't considered before reading this article, and I found them enjoyable to think about. If you didn't get anything out of it, that's fine, but don't rain on others' parade.