> For example, space lasers that can shoot down 100 nukes per minute or something ridiculous of that nature.

That’s a good start but you would also be able to shoot down multiple nukes from different sources. For example, you’d have a whole lot more time to neutralize an ICBM leaving x country’s mainland than you do a submarine launched missile right off the coast. Or a strategic bomber that penetrated your air defenses.

In my mind (and I am far from an expert), but the laser part is easy because that tech is already pretty mature. Though, keeping it sustained in space is another issue entirely because such a system would use a LOT of power.

The real problem becomes reliably tracking that many warheads at once and having the laser defense systems postured to make the kill shot. We’re talking multiple space vehicles and the requisite early warning and targeting systems working in unison to make that happen.

I suppose it’s possible, but I don’t see it happening any time soon.