The Crisis Wealth Managers Don't See Coming   Private asset management services face an unprecedented challenge. Most asset managers are accidentally entering a logistics nightmare as their ultra-high-net-worth clients accumulate decades of physical wealth—art collections, wine cellars, heirlooms, multiple properties—that no longer fit traditional portfolio management models.   With 85 million North Americans over age 60, and 1% qualifying as UHNW, the next 20 years will trigger massive asset disposition decisions. As a result, these decisions require coordination capabilities most wealth managers currently lack. According to a 2024 survey by Art Basel and UBS, wealthy individuals with a net worth of more than $50 million report a 25% allocation to art, while just over one-third of family offices are allocating capital to collectibles as part of their investment strategy. Nevertheless, fewer than 10% of wealth advisors believe collectors understand…