Ask HN: Things that are high quality yet cheap?

It's very hard finding high quality things that are cheap, and it's very easy finding low quality things that are expensive.

Rule of thumb is to read the 3-start (and below) reviews for anything that you're planning on buying. 4 and 5 stars are generally customers who had been paid to write those reviews.

Almost everything you can see around you probably went through a 50 year period like semiconductors have. Modern concrete making structures cheaper, larger, and quicker to build is one that comes to mind. Cars are another.

What you need is a kind of photo polymer that is polarizable by an electric field. Then you can write data in 3D from mold-able pour-able plastic resin.

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