+<li><a href="http://phantomos.org/">http://phantomos.org/</a>
+<ul class="org-ul">
+<li>Programs run forever. System crash or reboot does not destroy
+state of running program.
+</li>
+</ul>
+</li>
+
+<li>Taichi: A Language for High-Performance Computation onSpatially
+Sparse Data Structures
+<ul class="org-ul">
+<li><a href="http://taichi.graphics/wp-content/uploads/2019/09/taichi_lang.pdf">http://taichi.graphics/wp-content/uploads/2019/09/taichi_lang.pdf</a>
+</li>
+</ul>
+</li>
+