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.
Actually, I do have a second complaint: At 3.34 pounds, the Spectre 13 is actually on the heavy side for an Ultrabook. Case in point: The Lenovo Yoga 2 Pro and Samsung ATIV Book 9 Plus both come in at 3.06 pounds, while some models, like the Acer Aspire S7 and Sony VAIO Pro 13, come in well under the three-pound mark.