It only took solo venture capitalist Zal Bilimoria five phone calls to raise his latest $50 million fund. The former Andreessen Horowitz partner, who left the firm a decade ago to start VC firm Refactor Capital, said the new fund brings his total assets under management to nearly $300 million and will allow him to keep writing $1 million to $2 million checks into pre-seed and seed-stage startups. Bilimoria describes himself as a generalist hard-tech investor, with an interest in startups