There is a spectrum of &quot;Its not possible&quot;, generally from not feasible with current tech to fundamental laws of physics say no. Things on the &quot;not possible with current tech&quot; side are open for someone finding a nifty trick, things leaning towards the fundamental physics side, are not.<p>For this specific piece of tech its in the middle ground of the &quot;its not possible&quot; spectrum as human&#x2F;animal safety and the air we breathe are the limiting factors, so if someone figures out how to very tightly generate the beam with no reflections&#x2F;spillage and can detect when someone or a pet wanders into the beam, then its possible with high losses due to air.<p>All forms of wireless power suffer from effectively the same limitations of safety and air. Magnetic&#x2F;RF have problems with unwanted heating of nearby metallic objects, RF spectrum rights and beam size issues (and at high freqs, air losses), optical have mild-moderate air resistance issues and issues with reflections (very small amounts of reflection=blind people), ultrasonic have severe air loss issues and beam power limitations for safety. Physics doesn&#x27;t say no to wireless power, but it does say &quot;Only if humans are not nearby or you want small amounts of power (&lt;1w)&quot;.<p>Also, the best way to prove that you have conquered the limitations with a tech is to demonstrate to the world at large that it works in a practical enough manor. None of these &quot;It&#x27;s not possible&quot; startups that I&#x27;ve seen have demonstrated a working prototype that people can wander up to an look at.<p>Disclaimer: I have worked for a company that does industrial optical wireless power.