Just a month after Peter Thiel called Warren Buffett the "enemy No. 1" of Bitcoin (BTC-USD), describing him as a "sociopathic grandpa from Omaha," Buffett doubled down on his outlook of the popular crypto at Berkshire Hathaway's annual shareholder meeting. "Nobody wants their windpipe stepped on and I don't blame them. I don't like people to step on my windpipe, but I will say this," declared Buffett, who has previously referred to Bitcoin as "probably rat poison squared." Quote: "If you said... for a 1% interest in all the farmland in the United States, pay our group $25B, I'll write you a check this afternoon. For $25B, I now own 1% of the farmland. If you tell me you own 1% of all the apartment houses in the United States and you want another $25B, I'll write you a check, it's very simple. Now if you told me you own