PET is also probably the most already-recycled and recyclable plastic we use. While it is objectively a good thing we now have a new way to recycle something, it's not going to have the huge impact that the phrase "change the world" implies.

News headlines over-representing scientific advancement as a way of boosting morale sets people up for disappointment and complacency.

There are very different types of plastics in this world that each have their own formulas, dangers, benefits and recyclability. One things you can do for both the world and your health is to learn some of the high-level differences.

This is the most globally-accurate guide i have found for plastic identification and recyclability info

Tl;dr image summary of above content. We only really recycle plastics marked 1 PET, 2 HDPE, 4 LDPE and 5 PP at the moment

If you can find a way to reduce use of 3 PVC, 6 PS and 7 Other / unmarked plastics in your lives, please do so.

Tangent: only 2 and 5 should be used for food/medical if you are also heating it, especially acidic things. If you are in a situation where you can't avoid that, low heat, less time and you will minimise or likely entirely avoid problems.