Estimate the amount of storage needed to store all the photos and videos taken on Pixel phones.

The total population of the world is approximately 8 Billion.

Since pixel is a high-end phone. I assume 30% of people in the world is rich enough to afford pixel

So pool that can afford pixel is approximately 2.4 billion.

Among these rich people, I assume

Apple - 60%

Android ~40%

Android and rich users = 960 million users

In the android market, I estimate

Samsung = 60%

Oppo and other Chinese brands + etc = 35%

Pixel ~ 5% (rich and android users --> 960 million)

Pixel users = 48 million

From my personal experience, I observed around 60 GB of memory is consumed in the phone for storing images and videos.

Total memory required = 48 million X 60 GB

~ 2.9 Billion GB.