Where did you conclude that once SHA256 is broken, we'll upgrade to SHA384? If SHA256 becomes broken, which is a doomsday scenario, we shouldn't use neither SHA384 nor SHA512 as they all belong to SHA-2.

Good luck. First, try to find 120-bit private key from transaction puzzle (or 64-bit private key with unknown public key and known address). There are many challenges that are far easier than regular 256-bit keys, and you will quickly see, how far we are from quantum computers if you try to break any of them.

Latest Quantum Computer available commercially - D-Wave Quantum Computer
Costs: $15,000 (That too un-configured for Bitcoin Mining, coding will cost additional man's salary)

Quantum Computer Operation: Well you will probably need a room or at least superconductors which would be cooling down your 2000Qubic chip down to the -273 degree celsium.

If you have money then it's fine, buying computer worth $15 million wont be big deal for you. The question is would you be able to maintain the temperature below zero degrees all the time? Imagine the power consumption required to do that one.

Forget about break even point, you wont be able to recover the yearly power consumption out of the bitcoin mining.

If you start to inject the market with heavy supplies of bitcoin, assuming you are mining 1000x others, then ideally the supply will easily fill up the demand and might reduce in the pricing.

For example, Supercomputer in China, named Tianhe-2 use 18 megawatts of electricity.

In conclusion even if we use it, it wont be beneficial at all.

what do you think of the token $QANX ? QANPLATAFORM

they said to have a solution for this.

thanks!

If it's token, then they're lying since token only use existing cryptocurrency protocol/network.

I don't think it can. At least, in the upcoming few years, I think Quantum computers are still too expensive for someone to try such thing. I remember to watch a video quite some time ago and the video was explaining how hard it is to keep the computer running smoothly, how much energy it would spend and how would it cost, like per day, or something like that. The numbers were alarmingly high and the technology needed to keep the computer running was also large.

A part from that, I think there are already people working on Quantum resistant algorithms for when that time comes!

To clarify, Public Announcements were made on May and then again on August and many more updates leading into Sep 1. BitcoinTalk is only one of the various social medias and not the only one.  Please see other social medias.

1) Twitter announcement was may as far as May 2021 and then again on August 1 with various updates leading to the launch on Sep 1.
2) The original Telegram was a channel in which announcements were made on August 1 with various updates. (t.me/DogeProtocol) (the group was created to enable discussions later on based on feedback)
3) Website launch details in DogeProtocol.org with announcement dates can also be reviewed in Archive.org (WayBackMachine)