Smaller is Better?

At 1/10th my size, my cat would see me as food.

Jack Lalane, Richard Simmons, Jane Fonda, Jenny Craig and a myriad of other jocks and nutritionists have promoted ways to improve our physique for generations. This will be an unending battle. But a reduction to 1/10 of today's obese body mass is a sign of some unhealthy condition.

You're also have a false premise here. There does not have to be an advantage now for our basic size. There may have been one in our ancient past but not necessarily even then.

I've grown fond of my present size, thanks. OK, that 10 pounds around the middle I could do without.

I see all sorts of socio geopolitical implications here. How do we get everyone to shrink themselves. I see a super race 10 times larger than the rest of us who has secretly not been taking the Kris-Del™ Super Shrinker KoolAid.

Chris Leonard has a very good point. We'd have to shrink everything else, too.

_{Nice kitty.}

Now let us see... at 1/10th my present size I would be some 18cm tall and some 6 cm wide. My footprint will be about 28mm and my larger finger about 2mm thick, less than a toothpick. And our tiny skulls would be so cute, would make such intriguing necklaces. And crocodiles would not be hunting us, we'd be to small to bother about. Yeah...

Oh, the size advantage thing, I vaguely remember, it was about surface area for cooling/heating issues.. If I remember right, the surface area argument says the colder the environment the better off we are being large (although this never made sense to me - I would expect you'd lose more heat from more surface area).

But personally, I'm with you that we could do well at 1/10 the size.. only I want wings with that! (cats... pah!! okay maybe a beak as well )