task: homework 3 question answers

BuildingAChainlitApp.md

@@ -133,6 +133,10 @@ Simply put, this downloads the file as a temp file, we load it in with `TextFile
 
 Why do we want to support streaming? What about streaming is important, or useful?
 
+##### ANSWER:
+
+Streaming allows users to see the progress in the response, reducing the perceived latency. For larger responses it can allow for interruptions, or for the user to see the reponse being built. Streaming improves user experience by creating interactions that feel more natural and gives users insight into how the response is being created.
+
 ## On Chat Start:
 
 The next scope is where "the magic happens". On Chat Start is when a user begins a chat session. This will happen whenever a user opens a new chat window, or refreshes an existing chat window.
@@ -175,6 +179,10 @@ Now, we'll save that into our user session!
 
 Why are we using User Session here? What about Python makes us need to use this? Why not just store everything in a global variable?
 
+##### ANSWER:
+
+Without the User Session, multiple users could access the same session and overwrite each other's data. Any state related to the current conversation would be lost. Global variables affect the whole application and cannot be restricted to a single user.
+
 ## On Message
 
 First, we load our chain from the user session: