Why is Ark 170 GB?

Excuse me, could you elaborate on why the Ark blockchain currently consumes around 170 gigabytes of storage space? I'm curious to understand the technical reasons behind this significant storage requirement, and how it compares to other blockchain platforms. Is this due to the nature of its architecture, the amount of data it processes, or perhaps a combination of factors? Additionally, what measures are in place to ensure that this doesn't pose scalability issues or hinder adoption for users with limited storage capabilities?