Aeronautical Science for me.

Being able to relate to others is more of an art than an exact science.

REI is not rocket science.

@Alex HarshmanAbsolutely, it is by no means a fiction book and I re-read many chapters going through and highlight certain points.

Afterward, I worked diligently earning three university degrees (two bachelor's each in science and arts) and a master's degree in percussion performance.

Get to a RE meet, learn its not rocket science.  

This isn't rocket science, it's rather basic stuff. 

For example, we've got our systems down to a science now where I know it'll cost us $35/sq ft for cosmetic repairs (this will definitely vary depending on location/materials/your crew, so don't use our specific numbers), then if we can tell the house will also need bigger fixes such as roof, windows, mechanical, electrical etc. we add that in as well and we can use that to work the numbers backwards to get to our offer price.

The demographics of these investors are typically high income earners, almost 90% working in tech (software engineering, tech sales, computer science, etc).

The simple answer, without getting into building science too far, is that you should have an insulator use a small amount of spray foam to seal the attic at the ceiling level, to prevent air from going in and out of the house, then blow in insulation on top of it.