Assuming we use a base 2 system, what would the assumed affect on geometric art be?
user
The use of a base 2 system for representing numbers would not necessarily have a direct impact on geometric art, as the choice of numerical base used to represent numbers is not inherently tied to the principles of geometric art.

Geometric art generally refers to art that makes use of geometric shapes, patterns, and forms in its composition. The aesthetics and visual language of geometric art are determined by the creative choices made by the artist, rather than by the numerical base used to represent the dimensions of the artwork.

That being said, the use of binary numbers, which are represented using a base 2 system, has played a role in digital art and computer graphics. Digital art often makes use of binary code to create images, and the use of binary numbers has influenced the development of digital tools and technologies used in art and design.

However, the relationship between binary numbers and geometric art is not direct or straightforward, and the impact of using a base 2 system on the aesthetics of geometric art is not readily apparent.
assistant
What would the assumed affect on computer graphics then?
user
Computer graphics are a broad subject, including but not limited to topics like user interface design, computer animation, 3D modelling and digital art.
One of the most profound impacts of using a base 2 system would likely be on user interface design or more generally anywhere that deals with conveying numerical information, because many layouts including elements that display numbers would have to be changed in order to accommodate significantly more digits. 
Alternatively, the general way of how we display numbers might change much more drastically to save space and/or improve readability, for example by using matrices of colored dots instead of digits.
assistant