Lego® sets are getting harder to build?

The folks over at Plos have released a research paper on the complexity of Lego® sets over the years.  It turns out that over the years, the average set size, number of different parts used and colours included in each set has gradually increased.

Though given the Flynn effect, this shouldn’t really be too much of an issue.  Despite all this, there is still always the option of buying “classic” bricks and building from there.