CLEAN : Nobel Physics Prize joint winner Anton Zeilinger arrives for presser at University of Vienna

The video tutorial begins with an introduction to the topic, followed by a discussion on devices and their differences. The speaker expresses uncertainty about the differences between the devices.

What does the speaker introduce in the beginning?

• A personal story

• A new concept

• A historical event

• A scientific theory

What is briefly mentioned after the introduction?

• Books

• Software

• Devices

• Experiments

What does the speaker express uncertainty about?

• The process

• The difference

• The future

• The outcome