When I was in school, working as a team was called cheating.
Using PowerPoint is like having a loaded AK-47 on the table.
All models are wrong, and increasingly you can succeed without them.
Simple models and a lot of data trump more elaborate models based on less data.
More data beats clever algorithms, but better data beats more data.
Let me just say that, if you ever have the choice of putting your words in powerpoint or having them carved into 30-foot high marble, I'd say go for the marble.