Arthur Hayes, the co-founder of cryptocurrency exchange BitMEX, signaled interest in Australian rapper Iggy Azalea’s memecoin Mother Iggy (MOTHER), owing to favorable macroeconomic conditions. What happened: In an X post late Sunday night, Hayes highlighted how Bitcoin (CRYPTO: BTC) remained stable over the weekend as the Japanese Yen weakened following the Bank of Japan’s decision to keep its benchmark interest rates unchanged. Since the announcement, the yen indeed fell from 142.50 to 144.18 as of this writing, while Bitcoin made steady advances. Hayes viewed this as an opportunity to trade …