The Krononaut Moon Project 🌑<p><a href="https://me.dm/tags/StephenHawking" class="mention hashtag" rel="tag">#<span>StephenHawking</span></a>&#39;s <a href="https://me.dm/tags/Chronology" class="mention hashtag" rel="tag">#<span>Chronology</span></a> <a href="https://me.dm/tags/Protection" class="mention hashtag" rel="tag">#<span>Protection</span></a> <a href="https://me.dm/tags/Conjecture" class="mention hashtag" rel="tag">#<span>Conjecture</span></a> </p><p>In this 3-min clip, theoretical physicist Brian Greene explains how physics may prevent Time Travel to the past — known as <a href="https://me.dm/tags/retrograde" class="mention hashtag" rel="tag">#<span>retrograde</span></a> — and says that <a href="https://me.dm/tags/Hawking" class="mention hashtag" rel="tag">#<span>Hawking</span></a>&#39;s &quot;protection&quot; conjecture is supported by <a href="https://me.dm/tags/mathematics" class="mention hashtag" rel="tag">#<span>mathematics</span></a>. </p><p>🔗 <a href="https://www.youtube.com/watch?v=22H1LwQul_M" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=22H1LwQul_</span><span class="invisible">M</span></a> 26 Nov 2022 <br />🔗 <a href="https://en.wikipedia.org/wiki/Brian_Greene" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Brian_Gr</span><span class="invisible">eene</span></a> </p><p><a href="https://me.dm/tags/Time" class="mention hashtag" rel="tag">#<span>Time</span></a> <a href="https://me.dm/tags/Timelessness" class="mention hashtag" rel="tag">#<span>Timelessness</span></a> <a href="https://me.dm/tags/TimeTravel" class="mention hashtag" rel="tag">#<span>TimeTravel</span></a> <a href="https://me.dm/tags/research" class="mention hashtag" rel="tag">#<span>research</span></a> <a href="https://me.dm/tags/physics" class="mention hashtag" rel="tag">#<span>physics</span></a> <a href="https://me.dm/tags/BrianGreene" class="mention hashtag" rel="tag">#<span>BrianGreene</span></a> <a href="https://me.dm/tags/chronologyprotectionconjecture" class="mention hashtag" rel="tag">#<span>chronologyprotectionconjecture</span></a> <a href="https://me.dm/tags/theory" class="mention hashtag" rel="tag">#<span>theory</span></a></p>