gistfile1.txt

        string s = string.Join(",", Enumerable.Repeat("blah", 50));
        var charSpan = s.AsSpan();
        var vectorized = MemoryMarshal.Cast<char, Vector<ushort>>(charSpan);
        Console.WriteLine($"vector chunks: " + vectorized.Length);
        foreach(var v in vectorized)
        {
            if (Vector.EqualsAny(v, spaces)) { ...}
            
        }
        // todo: mop up any remainded

        // not shown: static readonly Vector<ushort> spaces = new Vector<ushort>(' ');