I don’t see how you can read and understood Nielsen and Chuang in one sitting, unless you are already a quantum computation theorist. I also don’t see how reading what is essentially an algorithms textbook can lead you to develop an informed opinion about the state of quantum computer engineering…

it’s like reading saying “I was curious about how computer software works so I ordered and read CLRS and I don’t think faster computers are anywhere on the horizon in 100 years…”