Understandable but does that really matter when we know so little?

It's like someone from an isolated Tribe saying it's not super probable to travel to the moon based on their info.

When we're talking about Space, we are probably even more clueless than that Tribe.

2040/50? Sounds very optimistic.

That's not a very open way to look at it though. What makes you so sure that an intelligent, complex species would need all those things at all? You can only say all that because your only sample is every species on earth.