What the OP described is called "cornering the market". When someone tries to buy all the world's supply of a scarce asset, the more they buy the higher the price goes. At some point, it gets too expensive for them to buy any more. It's great for the people who owned it beforehand because they get to sell it to the corner at crazy high prices. As the price keeps going up and up, some people keep holding out for yet higher prices and refuse to sell.
The Hunt brothers famously bankrupted themselves trying to corner the silver market in 1979:
"Brothers Nelson Bunker Hunt and Herbert Hunt attempted to corner the world silver markets in the late 1970s and early 1980s, at one stage holding the rights to more than half of the world's deliverable silver.[1] During Hunt's accumulation of the precious metal silver prices rose from $11 an ounce in September 1979 to nearly $50 an ounce in January 1980.[2] Silver prices ultimately collapsed to below $11 an ounce two months later,[2] much of the fall on a single day now known as Silver Thursday, due to changes made to exchange rules regarding the purchase of commodities on margin.[3]"
http://en.wikipedia.org/wiki/Cornering_the_marketMa soch rahaa taa ke agrr koi billionier akrrr ye saarii bitcoin ko khreed lay tu pir bitcoin os ke qaboo ma ajye gaa aurr wo oss koo jes trah chahee manipulte kar sakta haa and concept of decentralization will be changed but muje satoshii ki yee post nazar ayii jess maa os ne batya ke aysaa possiblee nahee ha , He called it "cornering the market".
Jaise jaise buying hogi market ma es ke price ma ezafa hota rahee ga aur pr ekk time aye ga ke price etni br jay gii kee koii beee ess ko khardne ke soche gaa bee nahee.
Es bande ke soch ko maa dad dayta hnn ke os time pe bee ess ne etna socha ha ke ane wale time me kyo ne kyo es ko centralized karr neee kii koshish karegaa aur ess ka ye concept khatam hoo jaye gaa. Ab rehti dunya tak kyo be es koo centralize na he kar sak ta aur ye es decentralization ko samjne ke eleey ek perfect example haa.