This is on the arduino, although could be my head as well.
So apparently there are three types of memory on the arduino
Flash memory (program space) where the program is stored
SRAM (static random access memory) its workspace
EEPROM, long term info.
Anyway, seems that the Arudino UNO is based on the ATMega328 has 2048bytes (bytes not megabytes, bytes, so yeah my laptop has 4 million times more RAM).
I have exhausted it and now have learn how to manage RAM. Which is a good thing because it signals I have progressed. If I did stuff that did not push the envelope, well, I would not be growing.
Anyway, will post more stuff hopefully by end of week, I am just having too much fun with my arduino. It is a rest day since I ran the 12k yesterday, so I am just doing pushups and situps.