Our artifacts are getting smarter, and a loose parallel with the evolution of animal intelligence
suggesLs one future course for them. Computerless industrial machinery exhibits the behavioral
flexibility of single-celled organisms. Today's best computer-controlled robots are like the simpler
invertebrates. A thousand-fold increase in computer power in the next decade should make
possible machines with reptile-like sensory and motor competence. Properly configured, such
robots could do in the physical world what personal computers now do in the world of data--act
on our behalf as literal-minded slaves. Growing computer power over the next half-century will
allow this reptile stage will be surpassed, in stages producing robots that learn like mammals,
model their world like primates and eventually reason like humans. Depending on your point of
view, humanity will then have produced a worthy successor, or transcended some of its inherited
limitations and so transformed itself into something quite new.
Your E/Fp has order 2^3 * 3 * 37991 * 21183269 * 373015308871 * 16071902378831708724506232718210977087913221837027589 and thus you can't hope for more than 86 bits of security due to Pohlig–Hellman, never mind cofactor attacks. encrypt() is also insecure (xor every byte of the message with the same shared secret byte), even if you chose a better curve.
This is much better version of the sibling comment but I'm a message board nerd and can't keep myself from pointing out that this code is probably a little bit tongue-in-cheek.
This is not real encryption, it picks only one byte of shared secret and XORs it into the plaintext. Therefore, there are only 256 possible decryption keys to check, which is trivial.
Instead, you'd want to use the shared secret as a key to something strong and symmetric like AES.
Once we are able to predict our lives autoregressively, we can continuously simulate and choose better outcomes by conditionally sampling from the predictive model using tree of search. Your personal AI guardian angel at scale.
I am pretty sure material science went a long way. No need to put a foot of lead behind the reactor. The space race provided quite a bit of funding toward lightweight protection. It was too late for those plane project as they were already ramping down in the mid 60's.
Neither that or the plane powerplant are unsolavle problem, it's more of a "why would we invest this much to solve something this silly". Apparently the russians are trying to resurrect their SLAM clone and tested one. How much of this is a realistic military project versus propaganda isn't super clear to me. It's up there along with the manned military space stations in the scale of pointless deterrent PR.
Hybrid-electric propulsion systems can enhance flight endurance by separating propulsion and power generation tasks, individually optimizing each for specific stress levels aligned with mission requirements.
Does the marginal efficiency make up for the added weight? Aircraft engines already operate in a very narrow envelope so they can be optimized for cruise.