The parable of the toaster

I'm pretty sure they do, using reflectivity ... but having looked I can't find them as products even though some toasters are listed on Amazon at > $400 USD for a 2-slice popup toaster they still just have a timer and handle to popup the toast. $400!

You're fairly new here - 17 days as I write this - so you might be wondering why people are downvoting you. I haven't - instead I'll provide a reason why I nearly did.

This is purely my opinion. Others will have different reasons.

For me to know that you think this article is too long, and that you didn't bother reading it, gives me no information. I don't know who you are, so I don't know whether your opinion is worth listening to. You give no reason for not bothering to read it apart from that you found it too long.

How far did you get? Why was it not grabbing your attention? What was your assessment of the part you did read?

Did you read none of it? That tells me more about you, than the article.

In short, I find no value in what you wrote, and so I would down-vote you, except that others already have, without providing reasons.

I don't know why they did, but I thought you might find value in why I nearly did. I hope that proves to be useful information for you.