Re: I don't believe Quantum Computing will ever threaten Bitcoin
Yes, I don't believe that quantum computing is dangerous right now. However, progress does not stand still if Bitcoin is now a powerful source of power for many social networks. Since it allows you to transfer amounts anywhere, and at the same time allows you to control your money, ensuring you complete safety. But this does not mean that in 20-30 years it will be as safe. What we could not even imagine could happen. Even now, more and more powerful advanced models are being created, which (maybe) will be further refined and evolved in the future. So in the future, there is a risk that bitcoin will not be so secure. 
----------------- Bitcoin will always be safe because it's based on good cryptography. In other words, cryptography, as a science and as a practice, is already 100 years ahead of technical progress. But these achievements have not yet been used. There's no need to. As soon as there is a need, these new cryptographic systems will be introduced immediately into bitcoin. The danger of bitcoin is completely different - it's not anonymous at all. If desired, all bitcoin owners can be identified. And only you will be identified, making a targeted attack will not be a problem. A trained attacker will no doubt steal your keys. He'll take your bitcoins without hacking into the cryptography. You don't have to think about the security of your cryptography, no fools to break it, but about your anonymity on the network. Here's the big problem. And I don't know how to solve them. VPN or Tor don't solve them. Only an anonymous operating system...