The short answer is no, but the more important question is how long will it be before investing in QuantumScape pays off?QuantumScape (QS -1.69%) stock is up 6% over the past six months, but down 34% from its high-water mark over that span. This is a volatile stock, to put it mildly, noting that the shares have fallen around 95% from their all-time highs, reached in late 2020. Is it too late to invest in QuantumScape? Probably not. But this is not an investment for the faint of heart.What does QuantumScape ...