Edit;
*21th century.
*you might have missed the news.
http://www.hydrogencarsnow.com/inde...ey-develops-sodium-borohydride-fuel-cell-car/
http://enerjienstitusu.com/2017/03/02/turkiyeden-dunyanin-ilk-elektrik-hidrojenli-hibrit-araci/
I have read the sources that you shared. I already know there is good qualities and many uses to Boron. They contain nothing regarding my claims of toxicity. They say nothing about it.
Our world really poor when it comes to hydrogen, hydrogen on earth exist in moleculer form, they use Boron to capture hydrogen from other sources. Then they burn it, turn it to electricity, store it to a battery and last they use battery energy for the electric engine, thus creating kinetic energy. And there is pros and cons about it, that is all.
Please if you wanna convince me share some real information instead of making me read tons of writing, that is how i learn, by research.
You might wanna say if they are using it, then it must be okay.
I wanna say are we only smart person "elin akıllısı bizmiyiz"? Why more advence countries fully utilize this. Dont say they dont have Boron i am from Kütahya and here say sell literally whole mountain of it to a cheapest price.