# Summary of IRC Log from #hplusroadmap (November 25, 2013)

The IRC log was relatively quiet with minimal substantive discussion. The few notable points were:

* A discussion about quantum mechanics was initiated regarding why photons of known energy levels still have uncertainty in where they will hit a surface, with references to the Schrödinger equation and observation-based collapse of quantum states.

* A brief mention was made about using single point vector scanning as an alternative to masks in semiconductor manufacturing, suggesting interest in alternative fabrication techniques.

* A user shared a BMJ paper titled "Parachute use to prevent death and major trauma related to gravitational challenge: systematic review of randomised controlled trials," which appears to be a satirical paper about evidence-based medicine.

* The FDA's warning to 23andMe to halt sales of their genetic tests due to lack of regulatory clearance was discussed, with speculation about the company's size (approximately 143 employees) and funding (about $160M).

* A link was shared to a DIY rock disaggregator device (http://www.lucidscience.com/gal-rock%20disaggregator-1.aspx), though no substantive discussion followed.