Actually, I would say you sound more like the cave person in this discussion. “Sounds great, let’s do it” is not a reasoned nor analytical approach.

Is it possible to build it? Maybe. Perhaps even probably. Does it make sense to build it? That’s a much better question. Overwhelmingly, the scientific response, since Regan first proposed it, has been “No”.

The biggest problem is the “plus 1” problem. Say you have an array of 100 killer satellites, each with an intercepting missile. Well an adversary can see all 100 satellites, and simply has to launch 101 ICBMs — or 100 cheap “dummy” missiles and 1 real one. It only takes 1 getting through to vaporize an entire city. The killer satellites would likely be a billion dollars or more each, and they are rendered completely useless by a relatively inexpensive fake missile — mostly costing just the price of fuel. You can’t take the chance that any launched missiles are not real, so you must intercept all of them. No matter how many killer satellites you have, it will be trivial to swamp them with cheap fakes and have a few real ones hidden in the volley. Inevitably some of the real ones will get through.

There’s another huge problem someone else alluded to — such a satellite system would be trivial to completely destroy before even launching any ICBMs. The most likely deployment would be LEO (low earth orbit). Destroying any satellite (either from another satellite or from a ground based launch) would send debris out in every direction. That debris would then collide with other satellites, starting a chain reaction that would likely take out most of the satellites in LEO trajectories around earth (including things like starlink, etc).

There are tonnes of other problems with Star Wars/Golden Dome/Iron Dome but just these 2, I think, make it a complete non-starter with our current technology.

I get how seductive the idea is. And one day, perhaps with high energy lasers and technology we clearly are decades away from today, then it might be possible. Spending 100+ BILLION dollars on this today is simple a pipe dream — or the greatest scam in history (more likely).

“Ever since nuclear-armed intercontinental-range missiles were deployed in the 1950s, the United States (and its potential adversaries) have been vulnerable to nuclear attack. This is very unnerving, and has caused our leaders to search for some kind of technical fix that would change this situation by making it possible for us to defend ourselves against such an attack. Fixing this situation is also very appealing to the public. As a consequence, new systems for defending against ICBMs have been proposed again and again, and about half a dozen have been built, costing large amounts of money, in the hope that a technical fix could be found that would make us safe. But none of these efforts have been successful, because the difficulty of defending against nuclear-armed ICBMs is so great.”

https://www.404media.co/scientists-explain-why-trumps-175-billion-golden-dome-is-a-fantasy/

Ya. It was a joke.

I don’t know that their security is “broken”. It may be, I don’t know. But also without anything that connects you to any particular message, it seems that – in itself – is a pretty good form of security.

I just don’t get why people accept Signal’s justification for requiring a phone number. They absolutely don’t need to (session proves that). It is certainly possible for them to say, “If you register without a phone number and access to your phone book then you will lose automatic discoverability by other users of Signal — meaning that you need to find another (physical) way to exchange your Signal username with your contacts”. They CAN do this. I think many users, like myself, would be fine with this tradeoff for greater anonymity. For some reason, they have steadfastly refused. The reasoning behind this refusal is what bothers me.

Yes. That was how they avoided using identifying information from their users.

Thanks for this link but your username also makes this pretty sus. 😜

Session is an alternative that does not require, or request, your phone number (or any other identifying information). Honestly, I have no idea why Signal got popular and Sessions did not. As soon as Signal asked for my phone number that set off alarm bells for me and I’ve never really trusted it since.

Another grave tragedy ignored by the right-wing media in the US (ie: all of the media). THESE ARE GOOD PEOPLE, DOING GOOD WORK FOR LITTLE-TO-NO MONEY, IN THE WORLD’S POOREST AND DIFFICULT REGIONS AND AMERICA - ONCE AGAIN - HAS LEFT THEM HIGH AND DRY. Does anyone believe any of these programs are coming back “after 90 days”? These people need to eat - today - they can’t wait around hoping that the USA comes to its senses. America has — once again — proven that it is a friend to no one, and, by all rights, should have no friends. Any country trying to appease these monsters will find themselves annexed or worse.