A solo tent needs to be below 1kg before I'd consider it light.

Maybe it is the lightest tent when considering the weather it can deal with, but this was not mentioned in your original message.

I don't get the analogy with the Tesla going to space? You don't expect cars to fly. What would be the tent equivalent? Using the tent as a boat?

Can you give an argument why we should adhere to your personal standard of a tent being light only if its under 1kg? Is it supported somewhere else? What if someone comes and claims that a tent is light only if its less than 500g?

I never said you have to adhere to my standard. Light is subjective of course. There is no such thing as a light weight standard for tents and if there was it still wouldn't be objective. I base my opinion on what is available in the solo tent market where I look at a combination of price, durability, where it will be used and how many days the hike is. There are not that many tents under 500g so it's a bit too restrictive in my opinion, but someone else could claim that and that would be fine.

I guess we are looking at different use cases for these tents.

I hike inside and around the arctic circle, sometimes during winter time.

That my shelter, that can take the beating that this kind of climate can dish out, weighs only around 1/30th of my total equipment weight makes it an incredible deal.

And subjectively very light.

Yeah I could have framed my original response better.

I have hiked above the arctic circle but not during winter time. Then I would look towards what you are using. ;) You do seem to hike a little heavier than me, but that could be a seasonal thing. When I go for a 10 day summer trip my pack is around 19-23kg, enough stuff to deal with weather around 0C and rain storms.