To summarize a few bits of the article, in case anyone else was wondering why graphene over silicon was better and if it was better why not graphene over silicon until now.

Why

• “ten times the performance and low consumption of power”
• “two hundred times stronger than steel” “unmatched compared to silicon”
• “thermal and electrical conductivity is better than copper”
• “lightweight, measuring less than one milligram per square meter”

Why not

• “Graphene-based chips are complicated to produce and are highly expensive to create”