Being a minority is a bit worrying.

He's prbably got a fresh nappy. 

Yeah there is, right I'm off to bed nyt. 

Lol looks like the 12 year old has gone to bed too. 

You're welcome - there's lots of info out there.

I hate sand in my socks the worst thing about going to the beach. 

But an interesting fact thanks for sharing. 

But you can't get it all off - the spacesuits are too unwieldy so you'll always miss some - so it's a long-term problem.  it also gets into the suit material and damages the threads causing premature failure.  Like sand in your socks!

I suppose that's where the air lock and vacuum came about in scfi

It gets walked into the habitat - it gradually gets everywhere - and if you leave the moon, in zero gravity it will all be floating about in the capsule - and into the astronaut's eyes - like grinding paste - and inhaled causing lung damage.

I didn't know that. 

I know there are dust storm's on mars that are a real concern but not the moon. 

I don't know - it depends what he's trying to do - there's a lot of talk about moon-bases but it's harder than you think because of the regolith - the moon dust is incredibly abrasive and will eventually get into door seals and cause pressure leaks - so it's a maintenance nightmare in anyone goes outside - it was a problem in the Apollo missions.

Do you think elon musk will be successful with space x? 

Extremely low power - good as a satellite positional thruster, no use for shifting a huge spaceship.

What do you think of the Em drive? 

Unfortunately, we're centuries away from deep space travel - and space is huge - it will take decades to get anywhere - assuming all the technology works and nothing bad happens on the way.

Current space tech is too risky for me - I'm not that brave.

No, I would go in search of new land new planets I would love to explore space I would go tomorrow would you? 

Everyone - you wouldn't want 50 people in your house - there's a natural 'correct' sustainable number.

It a really difficult question because who needs to controls themselves. 

There's a lot more issues around population growth - and that's a whole discussion in itself.    Multiplying will always reach a point where common sense and self control need to take over.

How?

As its our nature to multiply

And the one child policy has really been bad practice. 

You misunderstand - it would have been better to not get to this number in the first place.

Ahhr! Your poking me ha.

I will entertain,

who and what would you do with the other half?