Nobody's stopping you!

You can go ahead and start working a 32-hour week; most likely, you'll make roughly 80% of a 40-hour week's pay. Might be hard to arrange, as most jobs include benefits, hard to break those down to 80% but some minor negotiation should get you there. Most people would rather get 5-days pay per week than 4-days. Many folks work overtime, more hours for more compensation. But not everyone; there are "part-time" jobs out there, and self-employed folks can set their own weekly max-hours.

Or as happened repeatedly with a former boss:

Rush out a data CD for him to test, he tests it during lunch & it's unreadable...

Look for scratches on the bottom side, take it ito the men's room to wash off the peanut butter & jelly he'd gotten on it while eating, gently wipe dry & have him try it again. Deliver a stern lecture on the proper handling of CDs containing the master copy of the company's chemistry databases.

While I agree with you about 0.015" being enough for many hobbyists... that's only 1/64" not very finely specced.

There are plenty of items with tolerances in a few thousandths, a fair amount down to tenths (ten-thousandths), and my father (a tool & die maker) occasionally worked on projects with even tighter tolerances. I don't know what "aerospace" parts you're referring too, but heck - in my high school shop class, I had to do lathe work to diameters within .001" to pass. If you're milling a positioning notch or locating a hole for a bearing/shaft, you'd better be tighter than 0.015"

My neighbor's dog must be advanced, he has a default level of response:

Sensory Input / Response

Nothing is Happening / Bark continuously!

Who said anything about a network protocol?

A "data diode" receiver just needs to monitor an optical sensor, which could be pulsed at a fixed clock rate to provide a baseline. Monitor the on/off/brightness-level of your optical sensor, you can then write the output to a file. No need for a 2-way protocol.

An example demonstrates the practicality of this:

Timex DataLink watch: early models fed data to the watch by flashing bars of light on your monitor, while holding the watch's optical sensor in front of the monitor. No feedback from the watch back to the PC.

I'm also sure there are some folks at NASA who would suggest you can pull useful data from a received signal.

Come to think of it, the closed-captioning info in a TV signal is a one-way data transmission...

TFA points out that NONE of the crabs of that type are eaten: they are all too small too eat, so they're all thrown back, regardless of their resemblance to a face. So their is no evolutionary pressure based on their looks.

Even better would be not rendering animations in non-visible tabs...

Find some back issues of Mother Earth News - they've been running articles on folks doing all sorts of low-cost houses for decades. They have books / plans available, info on insulation / solar heat and power / etc.

Lots of good stuff.

re the "Assault Laser Restriction Act of 2015"

This will ban lasers painted in camouflage colors (forest, desert AND arctic), lasers with connectors for a shoulder sling, lasers over 36" long (and ironically, sawed-off lasers under 18" in length). Also, the sale of military-style "high-capacity" batteries will be restricted to military and law-enforcement only.

More like: "I do not like the state spending money on funding new private commercial enterprises that traditionally lose money. They should be spending it on maintaining existing state-owned properties, held in trust by the state for its residents."