Industrially washing the spoon my be more efficient than someone washing it by hand. However, that's not really the comparison here. Even if the step of washing the newly created plastic spoons (if that exists at all) is more efficient, there's still a lot more going on.

Yes, sure. But manufacturing a plastic trinket is similarly cheap, to the point of vanishing small cost.

It is cheap now, but think of it more as a loan. The price of being so wasteful will come for future generations who will have to deal with all our rubbish and all sort of environmental issues we've been causing in the past century or so.

All true.

I think of it as a spaceship. We can argue about how expensive maintenance of the food recyclers, water purifiers and oxygen systems are, but that's really moot: we maintain those things or die.

We'd have to make the decision to stop the oil industry etc. before it matters though. Until then the marginal cost of 1 spoon is vanishing small, and fussing over it is spending time and effort on foolishness.

> It's more sustainable to throw away a plastic spoon that wash it.

I'm not sure what planet you live on, but I live on one with a finite amount of oil. It also happens to be a planet with beaches where I've picked up hundreds, if not thousands of these "sustainable" plastic spoons, and forks and knives and bottle caps and bottles, toothbrushes, straws, bags, and one-use containers of all kinds.

So when people talk about it being "sustainable", I admit, I fantasize about dumping a few hundred bags of this junk right on their front lawn and seeing how much they enjoy it.

In contrast, I have not once--not once--picked up a metal spoon off a beach.