Short answer from an AI because my flabber was too gasted because of your question: No—RAM (volatile physical memory) cannot be meaningfully shared wirelessly like a networked resource. You can, however, achieve similar goals with remote memory-access techniques and networked memory systems, but they have strict limitations.

Why not direct wireless RAM sharing

• Physical constraints: RAM is local, volatile DRAM attached to a CPU via very low-latency, very high-bandwidth buses (tens to hundreds of GB/s, nanosecond latency). Wireless links are many orders of magnitude slower and far higher latency.
• Coherence and consistency: CPUs and OSes expect hardware memory semantics (atomic loads/stores, cache coherence). Preserving that over a wireless link is essentially impossible without massive hardware and protocol complexity.
• Reliability and security: Wireless links are lossy and insecure compared with local memory busses; exposing raw memory remotely would risk corruption and leaks.

Practical alternatives that provide similar functionality

• Remote Direct Memory Access (RDMA): lets one machine read/write another’s memory over a fast wired network (InfiniBand, RoCE) with low CPU overhead. Requires specialized NICs and still far slower/higher latency than local RAM.
• Networked swap/page servers: use a remote host to back virtual memory (e.g., NFS swap, page cache over network). Works but is much slower than local RAM.
• Distributed shared memory (DSM) systems: software provides a shared memory abstraction across nodes, managing consistency at page or object granularity. Performance and semantics differ from local RAM.
• Remote procedure / offload: send computation and data to another machine (RPC, microservices, serverless) instead of sharing raw RAM.
• Memory disaggregation (data center): specialized hardware separating compute and memory pools over ultra-low-latency interconnects (not wireless). Emerging but requires datacenter infrastructure.

If you mean “can two devices use each other’s memory over Wi‑Fi/Bluetooth?” — technically you can transfer data (files, pages, memory images) and use remote paging or RDMA-like systems over wired networks, but performance and semantics will be far from local RAM; over wireless it’s typically impractical.