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+#+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt)
+#
+# Software is all around us
+#
+#+INCLUDE: "prelude.org" :minlevel 1
+* Software source code lightning fast growth
+  :PROPERTIES:
+  :CUSTOM_ID: main
+  :END:
+** ~ 50 years, a lightning fast growth
+  :PROPERTIES:
+  :CUSTOM_ID: growthandimportance
+  :END:
+*** Harold Abelson, Structure and Interpretation of Computer Programs \hfill (1985)
+    /“Programs must be written for people to read, and only incidentally for machines to execute.”/
+ #+BEAMER: \pause
+*** Len Shustek, Computer History Museum \hfill (2006)
+    \hfill /“Source code provides a view into the mind of the designer.”/
+ #+BEAMER: \pause
+*** Apollo 11 (~60.000 lines), 1969                              :B_picblock:
+    :PROPERTIES:
+    :BEAMER_opt: pic=Margaret_Hamilton, width=.4\linewidth, leftpic=true
+    :BEAMER_env: picblock
+    :BEAMER_act:
+    :BEAMER_COL: .58
+    :END:      
+     "When I first got into it, nobody knew what it was that we were doing. It was like the Wild West."\\
+     \mbox{}\hfill Margaret Hamilton\\
+#     https://github.com/chrislgarry/Apollo-11
+#     https://archive.softwareheritage.org/api/1/origin/git/url/https://github.com/chrislgarry/Apollo-11
+ #+BEAMER: \pause
+*** Linux Kernel (in your pockets!)                              :B_picblock:
+    :PROPERTIES:
+    :BEAMER_opt: pic=Linuxlinecount, width=1.3\linewidth, leftpic=true
+    :BEAMER_env: picblock
+    :BEAMER_COL: .42
+    :BEAMER_act:
+    :END:      
+#    \mbox{}\\
+    \vfill
+ #+BEAMER: \pause