Money laundering is the process of transforming the profits of crime and corruption into ostensibly 'legitimate' assets.
The Surface Book is on the heavy side at around 1.5kg, but its footprint, at 31.23cm wide by 23.21cm deep, is perfectly acceptable for a laptop with a 13.5-inch screen. For the record, the Surface Pro 4 has a footprint of 29.21cm wide by 20.14cm deep. The hinge design adds a bit of height to the back of the chassis, so that when closed the Surface Book is relatively thick at the back -- 2.28cm, tapering to 1.3cm at the front.
Microsoft Surface Book (2016) vs Surface Book (2015) vs Surface Pro 4: Design. The Surface Pro 4 features a magnesium case, measures 292.1 x 201.4 x 8.5mm and weighs either 766g or 786g, depending on the configuration. Microsoft claims it is the perfect balance of size and power for working on the go.