Consumer IoT is too expensive, not useless. Everything it can&#x27;t do is a metric of the fact that computing on that scale actually isn&#x27;t cheap enough.<p>Light control for example: people don&#x27;t want to spend the $thousands it would cost to make it practical (i.e. every light in your house control) when the most common use-case it would solve is leaving your house and going &quot;oh, I left the lights on - but click!&quot;. That&#x27;s worth maybe $10 a light to me, not $70. Which in turn implies the wi-fi, compute and power has to cost cents, not dollars in the product.