Nonsensical or thoroughly debunked technobabble. The most annoying for me is faster than light communication via quantum entangled particles. Yes entangled particles will change each other’s state faster than light but this effect CANNOT be used to send information of any kind. At all. Ever. This has been known since engagement was first discovered but Hollywood is always like “I’m just going to ignore that second part.” I don’t even have anything against ftl comms or any other physics breaking things, just use an explanation that isn’t literally impossible and well known why it’s impossible for God’s sake.

Shooting two guns at the same time does in fact look cool. That’s not a myth. Hitting two targets with two guns at the same time is really hard though.

Nowhere did I say or imply that capturing CO2 is a net positive of energy. It is in fact a huge energy sink. If you aren’t using renewables to power CO2 capture then you’re just making the problem worse.

We have to do both. If today our emissions went to zero we would still see more warming because of all that CO2 we’ve already released. First priority is to get to net zero so we can stop making the problem worse, then we have to remove all the CO2 we released. We have the technology now to do step one it’s just a matter of scaling it up. While we work on step one we need to do the research on the best way to do step two so when we get to that point we have something ready to go. Pulling CO2 out of the air is going to be inefficient no matter what just from the physics of the problem but it still needs to be done and the energy to do so has to come from renewables.

Doing some back of the envelope calculations we have put about 1.6 trillion tons of CO2 into the atmosphere since the industrial revolution. Latest estimates put the number of trees on earth at around 3 trillion. Looking at how much CO2 a tree takes up puts the average around 600lbs over the first twenty years. So combing all this if we want to plant enough trees to take up all the excess CO2 we would need about 5.3 trillion more trees, or almost double the total number of trees on the planet.

This is simply not achievable in a fast enough time span to make a difference. Nevermind that I was being super optimistic with all my calculations and the real number needed is likely much higher still.

It is simply a necessity to develop better methods to pull CO2 directly from the air and to do it on the same scale that we have been releasing CO2.

In addition to what has been said already, in many places the cost to upgrade the electrical service to the building to handle the amount of power that could be generated can be as much or more than all the other costs combined. So now the building operators are looking at millions in cost with a potentially 30 year payback period. It just doesn’t make sense at that point.

That is already a thing and it’s called concentrated solar power. Basically aim a shit load of mirrors at a target to heat it, run some working fluid through the target and use that to make steam to turn a turbine. There are a few power plants that use it but in general it has been more finicky and disruptive to the local environment than traditional PV panels would be.