Thats the reason i sold all my bitcoins. I beleive in cypto tecnology, but sooner or later a Bitcoin Private Key will be stolen by bruteforce and the market will lost its value.
Your statement also apply to any cryptography which only deemed secure for some time. For example, NIST disallow SHA-1 usage in 2013 which is 18 years after SHA-1 is published.
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2- With todays hardware technology is imposible to find a private key. ... I beleive in cypto tecnology, but sooner or later a Bitcoin Private Key will be stolen by bruteforce and the market will lost its value.
If that happens, we will switch to a stronger ECC. For example from 256 bit to 512 bit.
It's more likely we will switch to different cryptography though, which likely to be quantum resistant while remain compact in size.