Quote from: michellee on December 14, 2019, 08:59:48 AM

the developer will always upgrade the system following the growth of the technology.

That's not an issue. Bitcoin developers have already post quantum solutions.
But there are lots of 'shalecoins', https://bitcointalk.org/index.php?topic=5134441.0 coins with no owner. With quantum computers, these coins will become active and change the Bitcoin ecosystem.

Quote from: serjent05 on August 13, 2019, 02:08:09 PM

Satoshi had already thought of the quantum computers, and the possible decoding of the privatekeys if it became available, ..

His coins would be quantum secured, if he sent them to P2PKH addresses. But he did not and isn't doing.

Quote from: only1post on August 07, 2019, 04:47:51 PM

Quote from: qubitasic on August 07, 2019, 02:49:49 PM

2. Satoshi created the greatest prize competition and the privatekeys are somehow within the blockchain. https://bitcointalk.org/index.php?topic=5150688.0

and privatekeys are somehow within the blockchain = quantum computer?

We will get the answer with quantum computers. As soon as possible.