Add backup slide on PHYSLITE reading

talk.md

@@ -516,6 +516,15 @@ HL-LHC era data scale requires rethinking interacting with data during analysis
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+---
+# Reading PHYSLITE with Columnar Backends
+
+.large[
+* For reading `ElementLink` and other unreadable members are pursuing multiple strategies
+* Have Awkward behaviors in Python, but we also try to turn everything into POD branches, and RNTuple will help with that
+* If only target infrastructure was Uproot we could stick with Awkward behaviors, but RDF (without dictionaries), and Julia would also have to support such custom reading, and that's not a scalable approach
+]
+
 ---
 # References