People who live in stainless steel houses shouldn't throw stones

Among many valuable things I learnt this morning, the most revolutionary learning was that stainless steel is bio-degradable.  

Before you write me off (assuming you are yet to do so), the source of this profound insight is the cardboard box in which a new water bottle was delivered by Amazon.  It's pretty humbling to finish up a whole education in physics, chem and bio and then be told by a water bottle box that you know absolutely jackbull, diddly squat, zip, fanny adams, zilch.  
   
Armed with this contemporary material science education, I went out and took a hard look at my car and then parked it under the porch; it is made of only plain steel, not even stainless, by those cheap guys at Ford, can you believe this?  Two days ago, a passing two-wheeler guy was chewing a paan and did what someone chewing a paan has to do sometime in his disgusting, misaligned life, when he overtook my car.  
So, I know that the steel of my car is not stainless.

Now that I had the secure knowledge from the water bottle box that my car could biodegrade and now that it is the monsoon – well, allegedly, it is the monsoon, but we see rain only on Netflix these days - I could wake up next morning and find just the battery, the steering and the dashboard, all of which – when reports last came in and to the best of my outdated knowledge – are not biodegradable. And, of course, I would find some moist soil that was once steel.  What makes it worse – distressing, no less – is that my car insurance policy does not cover losses due to biodegradation or dissolution-of-whole-chassis by heavy rain.  

I always knew these insurance guys could not be trusted to do the right thing.
There is an old Ambassador car four houses away and I have always felt that it is held together by Love (Is Love the Glue? By Paul Warren, if you want some serious material science poetry).  Now I know for sure that what is called the chassis of that bloody Ambassador is just many layers of paint, mixed with carbon monoxide and paan-projectile.  And when that car degrades, there won’t even be a steering left, because the owner has never used one in his rotten life. 

I have also had a lively day thinking of other things that could be, if Amazon informs us in time, biodegradable.  Like diamonds and gold and stuff.  It’s a nice feeling of schadenfreude to know that one day those folks who strut around wearing all those rings and chains will be left with a few grams of ashes, dust and soil – soil, mind you, without even earthworms - and that their idea of carat will then have a different spelling and be a vegetable from Ooty.  

So, in a nutshell -which incidentally is also biodegradable, like stainless steel – we need to build cars with cement.