added Taichi reference

diff --git a/doc/index.org b/doc/index.org
index 8c176b8..b81105a 100644 (file)
--- a/doc/index.org
+++ b/doc/index.org
@@ -202,6 +202,10 @@ Interesting or competing projects with good ideas:
 
 + [[id:01aa65c1-3d44-44a8-9b90-58454bc6be80][CM-1 Connection Machine]]
 
++ Taichi: A Language for High-Performance Computation onSpatially
+  Sparse Data Structures
+  + http://taichi.graphics/wp-content/uploads/2019/09/taichi_lang.pdf
+
 + GRAKN.AI
   + database in the form of a knowledge graph that uses machine
     reasoning to simplify data processing challenges for AI