Last time Bitcoin was at USD 43,- it was quite healthy and part of a flourishing (albeit admittedly largely illegal) economy. Why would that be the "dead of Bitcoin"?
On a less serious note that would also solve the scaling problem as fees would be in the sub-cent area again, even with full blocks.
You clearly didn't bother to the read and understand the article. Typical of "Bitcoiners" when they research something. They cannot read more than one sentence before dropping reading the rest, and then demonstrating their ignorance
Besides your quote the article is mostly devoid of content though, what's there to miss? There's not even any mention of how this guy came to that very specific evaluation of USD 43,-.
For example this:
“Unless Bitcoin is able to become more efficient at mining, and more stable overall, it is likely to die. These higher mining costs and the fact that more retailers are failing to accept bitcoin as payment – as they are unable to convert it as it is too expensive – will mean the end of it.”
The quote above shows both a lack of understanding of PoW's security principle and is at odds with their prediction of BTC @ USD 43,-. If Bitcoin were to hit USD 43,- or a similar low Bitcoin's mining cost would sink proportionally -- as would its transaction fees in fiat terms, as I jokingly mentioned above.
And then this bit:
The last situation is when Bitcoin loses its value among people and stops being useful as a payment method.
That's just a statement without any backing argument. There's... nothing else.
What to say about an article that essentially says nothing?