Because it is written in Squeak Smalltalk, Scratch does support late binding as illustrated by this script:
I could tweak the size slider while the program was still running to produce a whole variety of new coloured squares on top of the original squares:
For more on late binding see:
why learn etoys squeak?
morphic / etoys is superior GUI and programming development system
late binding references
etoys (late binding)
Syndicate Science – The Definition
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This is what we identify as Syndicate Science. Ironically, amidst our focus
on external threats, a more insidious danger has evolved from within the
corrid...
49 minutes ago