write a summery of the following video



summarize it in 2 paragraph

should be in this format:

ECH4936 Online Talk Summary

Student name goes here

Talk title:

Speaker name:

Talk venue (i.e. what institution and seminar series was it in):

Hyperlink to video: https://youtu.be/Xxe4D8u6sVE

By submitting this summary, I affirm that I viewed the talk identified above in its entirety and that the summary below constitutes my own original description of the talk.

Two-paragraph original summary

Past text of summary here

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